May is the month Seattle locals wait for. After 6 consecutive months of grey skies and 100-200mm of monthly rainfall from November through April, May drops to 56mm across about 10 rainy days, and the afternoons increasingly break into genuine sunshine. Temperatures reach 17.3°C (63°F) during the day, settling to 9°C (48°F) at night, and daylight stretches past 8:45 PM by the end of the month. The rain hasn't stopped entirely. But it shifts from the all-day drizzle that blankets Puget Sound through winter to a lighter morning mist that tends to burn off by noon. Step outside a cafe on Capitol Hill after the clouds lift and you'll catch the scent of damp cedar and blooming lilac drifting from Volunteer Park.
This is also when Seattle's event calendar picks up speed. The Seattle International Film Festival, one of the largest in North America, typically opens mid-May with hundreds of screenings at venues across Capitol Hill, downtown, and the University District. On the first Saturday of the month, Opening Day of Boating Season sends a parade of decorated boats through the Montlake Cut, a tradition dating to 1920 that locals treat like an unofficial civic holiday. Northwest Folklife takes over Seattle Center on Memorial Day weekend with free stages of folk, blues, and world music. On May 17, Ballard's Syttende Mai parade celebrates the neighborhood's Norwegian heritage with folk costumes, marching bands, and lutefisk.
The practical advantage of visiting in May comes down to timing. You arrive after the worst rain but ahead of the July and August tourist wave, when Pike Place Market gets shoulder-to-shoulder by 11 AM and hotel rates in Belltown and Capitol Hill climb 30-50% above spring levels. The Washington Park Arboretum reaches peak bloom with rhododendrons and azaleas across its 230 acres. Ballard's Sunday farmers market starts carrying spot prawns from Puget Sound and the first local strawberries of the year. Mount Rainier appears on clear mornings, still snow-covered and sharp against the sky, from the overlook at Kerry Park in Queen Anne. Seattle's best month is July, when rainfall drops to 7mm. But May likely offers the strongest balance of tolerable weather, manageable crowds, and reasonable prices.
Why visit in May
- Rainfall drops to 56mm from winter peaks of 170-200mm, and the 10 rainy days in May typically bring light mist rather than the grey all-day drizzle that defines November through March.
- The Seattle International Film Festival opens mid-May with hundreds of independent and international film screenings across venues citywide, running for about 25 days.
- Hotel rates sit in a shoulder-season gap, with rooms in Capitol Hill and Belltown running roughly 20-30% below July and August peaks while the city's main attractions remain fully open.
- Daylight lasts past 8:45 PM by late May, giving long evenings for waterfront walks along Elliott Bay, sunset views from Gas Works Park, or outdoor dining in Fremont and Ballard.
- Spring produce peaks at farmers markets. Spot prawns from Puget Sound, the first Copper River king salmon at Pike Place Market, Cascade-foraged morel mushrooms, and early local strawberries all appear in May.
Worth knowing
- Rain hasn't stopped. Expect about 10 wet days out of 31, and the first half of May tends to run grayer and cooler than the second. Streaks of 3-4 consecutive overcast mornings are normal, and the damp 9°C starts can feel genuinely cold.
- The Cascade Range foothills remain partially snow-covered, limiting higher-elevation hikes. Trails above 1,200 meters (4,000 feet) may be inaccessible or require microspikes until late June or July. Paradise in Mount Rainier National Park at 1,600 meters (5,400 feet) is often still buried in snow.
- Puget Sound water temperatures hover around 10°C (50°F), far too cold for recreational swimming without a wetsuit. Public outdoor pools don't typically open until late June.
Best for
Think twice if
May marks Seattle's transition from the wet grey winter into the drier months. Rainfall drops to 56mm across about 10 days, a sharp decline from December's 201mm. Mornings often start cool and overcast around 9°C (48°F), with a damp chill that can surprise visitors from warmer climates. By early afternoon, clouds frequently break and highs reach about 17.3°C (63°F). Humidity sits at 74%, which keeps the air feeling fresh and earthy without any stickiness. The second half of the month tends to be drier and warmer than the first, and stretches of 3-4 consecutive clear days become common by late May. Evenings drop noticeably after sunset, and you'll want an extra layer if you're out past 9 PM.
Year-round climate
Averages from the last 5 years.
| Month | Avg high (°C) | Avg low (°C) | Rainfall (mm) |
|---|---|---|---|
| Jan | 8 | 3 | 171 |
| Feb | 8 | 2 | 109 |
| Mar | 11 | 4 | 98 |
| Apr | 13 | 6 | 73 |
| May | 17 | 9 | 56 |
| Jun | 21 | 12 | 48 |
| Jul | 25 | 15 | 7 |
| Aug | 25 | 15 | 31 |
| Sep | 21 | 13 | 50 |
| Oct | 15 | 9 | 111 |
| Nov | 10 | 6 | 172 |
| Dec | 8 | 4 | 201 |
Headline events
Seattle International Film Festival (SIFF)
Mid-May through early June
One of the largest and longest-running film festivals in North America, SIFF screens 400-plus features, documentaries, and shorts across venues in Capitol Hill, downtown, and the University District over roughly 25 days. The festival has run since 1976 and draws film enthusiasts from across the country for premieres, filmmaker Q&As, and jury-awarded competitions. Mid-May screenings give first access to independent and international films months ahead of general release.
Best things to do in May
Walk the Washington Park Arboretum during peak rhododendron bloom
natureThe 230-acre Arboretum on the border of Capitol Hill and Madison Park holds one of the largest rhododendron collections in the Pacific Northwest. In May, the Azalea Way path erupts with color, from deep purples and magentas to pale pinks and whites. The Japanese Garden within the park charges a small admission but is worth it for the meticulously maintained stone paths and reflecting ponds.
Rhododendrons and azaleas peak in May across the Arboretum. By mid-June, most blooms have dropped and the display is over for the year.Booking tipNo booking needed for the Arboretum itself. The Japanese Garden has a small entry fee and can get busy on sunny weekend afternoons. Weekday mornings are quieter.
Watch Opening Day of Boating Season at the Montlake Cut
culturalOn the first Saturday of May, a parade of sailboats, yachts, kayaks, and decorated vessels passes through the Montlake Cut, the narrow channel connecting Lake Union to Lake Washington. Spectators line both banks with blankets, coolers, and lawn chairs. The University of Washington crew team rows past, canons fire, and the general feeling is of a civic party that Seattle has held since 1920.
This is a single-day event held only on the first Saturday of May. It's a 100-plus-year-old tradition and does not repeat.Booking tipFree to watch from shore. If you want to be on the water, boat and kayak rentals on Lake Union book up 3-4 weeks in advance for this day.
Attend SIFF screenings across the city
culturalThe Seattle International Film Festival programs screenings at multiple venues including SIFF Cinema Egyptian on Capitol Hill, SIFF Cinema Uptown near Seattle Center, and other locations. The lineup ranges from international premieres to local shorts, with filmmaker conversations and jury competitions. The atmosphere feels more accessible and less industry-heavy than Sundance or Tribeca.
SIFF typically opens in mid-May and runs through early June. The opening-week screenings and galas carry the most energy.Booking tipFestival passes and individual tickets go on sale in late April. Popular films sell out, but weekday matinee rush tickets are often available at the door.
Kayak on Lake Union with views of the Space Needle and houseboats
outdoorPaddle from the south shore of Lake Union past the historic floating homes (the ones from Sleepless in Seattle are on the east shore at Westlake), around sailboats and seaplanes, with the Space Needle to the west and the Cascades to the east on clear days. The water is calm, and the scenery shifts constantly as seaplanes take off and land beside you.
May's mid-teen temperatures are comfortable for paddling without overheating. Summer weekends bring 2-3 times the boat traffic, making the lake noisier and more congested.Booking tipSeveral rental shops operate on the south end of Lake Union. Weekend mornings book up by Thursday in May. Weekday afternoons rarely need a reservation.
Take the ferry to Bainbridge Island
day tripThe 35-minute Washington State Ferries crossing from Colman Dock in downtown Seattle to Bainbridge Island is one of the best low-cost experiences in the city. The outbound ride gives panoramic views of the Seattle skyline, Mount Rainier, the Cascades, and on clear days, the Olympic Range ahead. Bainbridge itself has a walkable downtown with bookshops, wine tasting rooms, and a waterfront path.
May's improving visibility gives clearer mountain views from the ferry deck than winter crossings. Summer weekends fill ferries to vehicle capacity, causing 1-2 sailing waits. May weekdays are far calmer.Booking tipWalk-on passengers don't need reservations. If driving, book through Washington State Ferries online, especially for weekend crossings.
Hike the trails at Discovery Park in Magnolia
outdoorSeattle's largest park covers 534 acres at the tip of the Magnolia neighborhood, with 12 miles of trails through old-growth forest, meadows, sea cliffs, and a beach with the West Point Lighthouse. The trails are well-maintained and vary from flat waterfront walks to moderate forest loops. On clear days, you can see the Olympic Mountains across the water.
May's wildflowers bloom across the bluffs overlooking Puget Sound, and the extended daylight allows comfortable evening hikes. Summer weekends bring larger crowds and fuller parking lots.Booking tipFree and no booking required. The parking lot at the south entrance fills on sunny weekend mornings. The north entrance via the Magnolia neighborhood is usually less crowded.
Browse the Ballard Farmers Market on Sunday morning
foodThe year-round Ballard Farmers Market on Ballard Avenue NW fills a full block each Sunday with produce stalls, flower vendors, bakers, and prepared food stands. In May, the tables start carrying the spring ingredients Seattle cooks wait for. Live spot prawns, the first strawberries, morel mushrooms, fresh pea shoots, and rhubarb stalks in shades of crimson. The smell of wood-fired pizza and fresh bread hangs over the street.
May is when the market transitions from winter root vegetables and stored apples to the first true spring produce. Spot prawn season and early strawberry season both typically start in May.Booking tipNo booking needed. Arrive by 10 AM for the best selection, especially for spot prawns, which sell out by late morning.
Explore the Olympic Sculpture Park at sunset
artThe Seattle Art Museum's free outdoor sculpture park stretches along the Belltown waterfront with large-scale works set against the water. The zigzag path descends from the street level down to a pocket beach on Elliott Bay. On clear May evenings, the sun sets behind the Olympic Mountains across the Sound, turning the sky orange and pink behind the mountain silhouettes.
May's late sunsets (past 8:45 PM by month's end) and increasingly clear skies create long golden-hour windows at the park. In winter, it's dark and wind-swept by 5 PM.Booking tipFree and always open. No booking needed.
What to eat in May
In season: fruit
Rhubarb
Pacific Northwest rhubarb peaks in May, and Seattle kitchens put it everywhere. You'll find rhubarb crisps, rhubarb shrub cocktails, and rhubarb compote alongside brunch dishes in Fremont and Capitol Hill cafes. The stalks run from pale pink to deep crimson at farmers markets, and they carry a tart, almost sour snap that balances well against sweet spring strawberries.
Hood strawberries
The first local Hood strawberries of the year start appearing at Puget Sound-area farmers markets in late May. Hood berries are a Pacific Northwest cultivar that's smaller, softer, and far more fragrant than commercial varieties. The season is short, typically only a few weeks. If you see them at the Ballard or Capitol Hill farmers market, buy them immediately. They don't last.
In markets
Spot prawns
Puget Sound's spot prawn season opens in May. These sweet, delicate prawns arrive live at Pike Place Market and the Ballard Farmers Market, often sold still twitching in paper bags. Restaurants across Capitol Hill and Ballard run spot prawn specials through the short 6-8 week season. The flavor is cleaner and sweeter than imported shrimp, with a snappy texture when eaten same-day.
Copper River king salmon
The first Copper River king salmon shipment from Alaska arrives at Pike Place Market in mid-May, an event that makes local news and draws lines at the fish stalls. The fish is deep red, rich in fat from the long upriver migration, and has a buttery texture that locals anticipate all winter. Expect to pay a premium for the first catch of the season, but the flavor is worth the markup.
Morel mushrooms
Wild morels foraged from the Cascade Range foothills appear at farmers markets and higher-end restaurants in May. The honeycomb-textured caps have a deep, earthy, almost nutty flavor that pairs well with the spring butter and local halibut you'll see on the same menus. The Ballard and University District farmers markets are reliable spots to find them.
Pacific halibut
Fresh Pacific halibut from the Alaska season is flowing through Pike Place Market by May. The thick, white fillets have a mild, clean flavor and a firm texture that holds up well on the grill. You'll see halibut fish and chips at waterfront spots in Ballard and along the Alaskan Way waterfront, and it appears as a featured entree at restaurants across the city.
Regular events in May
Northwest Folklife FestivalFree
A free, multi-day music, dance, and cultural festival at Seattle Center over Memorial Day weekend. Multiple stages host folk, blues, world music, and spoken word from regional and international performers. The grounds around the Space Needle fill with food vendors, craft booths, and impromptu jam sessions. It's been running since 1972 and draws over 250,000 attendees across the weekend.
Memorial Day weekend (last weekend of May)Opening Day of Boating SeasonFree
A parade of decorated boats through the Montlake Cut connecting Lake Union and Lake Washington. This tradition dates to 1920 and marks the unofficial start of Seattle's boating season. Spectators line the cut and surrounding parks. The University of Washington crew team participates in exhibition races.
First Saturday of MayUniversity District Street FairFree
One of the longest-running street fairs in the United States, held along University Way NE (known locally as 'the Ave') in the University District near the University of Washington campus. Hundreds of vendors sell crafts, food, and art, with live music stages and a general block-party atmosphere. It's been running since 1970.
Mid-May (typically a Saturday and Sunday)Syttende Mai Parade in BallardFree
Ballard's Norwegian community celebrates Norwegian Constitution Day on May 17 with a parade through the neighborhood's historic downtown. Participants wear traditional bunads (folk costumes), marching bands play, and the Scandinavian-heritage organizations turn out in force. It's a distinctly Ballard event that reflects the neighborhood's fishing-village roots.
May 17Seattle Mariners home games at T-Mobile Park
Major League Baseball is in full swing by May, and the Mariners typically play 12-15 home games at T-Mobile Park in the SoDo neighborhood south of downtown. The retractable roof means games go on regardless of rain. The stadium's food options include garlic fries that are a local institution and Ivar's clam chowder.
Throughout May (check MLB schedule)Best places this May
Washington Park Arboretum
parkThe 230-acre park between Capitol Hill and Madison Park holds one of the Pacific Northwest's largest collections of rhododendrons and azaleas, both of which peak in May. Azalea Way, a wide grass path through the center, is the signature walk. The Japanese Garden inside the grounds charges a small admission fee and offers a quieter, more meditative experience with ponds and stone lanterns.
Capitol Hill / Madison ParkKerry Park
viewpointThis small viewpoint park in the Queen Anne neighborhood delivers the classic Seattle postcard shot. The Space Needle, the downtown skyline, Elliott Bay, and Mount Rainier all line up in a single frame. May mornings, especially before 9 AM, tend to offer the clearest Rainier views before afternoon clouds build. It's a 5-minute detour if you're walking the Queen Anne hill.
Queen AnnePike Place Market
marketSeattle's 1907 public market is busy year-round, but May's flower stalls are particularly worth seeing. Peonies, tulips, and ranunculus are stacked in buckets along the main arcade. The lower levels, called the DownUnder shops, hold small vendors, comic shops, and oddity stores that most tour groups skip entirely. The fishmongers are carrying fresh Copper River salmon and halibut by mid-May.
DowntownDiscovery Park
parkSeattle's largest city park at 534 acres occupies a bluff on the Magnolia peninsula. The loop trail through old-growth forest leads to a beach with the West Point Lighthouse and views across Puget Sound to the Olympic Mountains. May wildflowers appear on the open meadows and sea bluffs. The scale of the park means you can walk for an hour and barely see another person on a weekday.
MagnoliaGas Works Park
parkThe park on the north shore of Lake Union sits on a former gasification plant, and the rusting industrial towers remain as public art. The top of the grassy hill is one of the best spots in Seattle to watch the sunset behind the downtown skyline. In late May, the hill fills with locals on blankets after work, and you can hear seaplanes taking off from the lake below.
WallingfordOlympic Sculpture Park
parkThe Seattle Art Museum's free outdoor park stretches along the Belltown waterfront. Large-scale sculptures dot a zigzag path that descends from street level to a pocket beach on Elliott Bay. On clear May evenings, the Olympic Mountains across the water catch the late sunset light. The park connects to the Elliott Bay Trail for longer waterfront walks north toward Magnolia.
BelltownHiram M. Chittenden Locks (Ballard Locks)
landmarkThe locks connect Lake Union and the Lake Washington Ship Canal to Puget Sound, and watching boats rise and fall through the chambers is surprisingly absorbing. The adjacent Carl S. English Jr. Botanical Garden is in full spring bloom in May. The salmon viewing window underground is worth a look, though the main salmon runs don't start until late June.
BallardFremont neighborhood
neighborhoodThe self-proclaimed 'Center of the Universe' is a compact neighborhood north of Lake Union with the Fremont Troll sculpture under the Aurora Bridge, a Lenin statue, quirky public art, and a Sunday market that reopens its outdoor section in spring. The breweries along 34th Street (Fremont Brewing, for one) have outdoor patios that are finally comfortable in May's warmer afternoons.
Fremont
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Insider tips
The Ballard Farmers Market on Sundays is where locals buy spot prawns and spring produce. It's less tourist-heavy than Pike Place Market and the prices tend to be lower for the same quality of produce. Arrive before 10 AM if you want spot prawns, because they sell out by late morning.
If you're photographing Mount Rainier from Kerry Park, go early. Clear mornings are common in May, but clouds tend to build over the Cascades by early afternoon. Before 9 AM gives you the best odds of a sharp, snow-covered Rainier in frame with the Space Needle.
The lower levels of Pike Place Market, the DownUnder shops below the main arcade, are largely ignored by tour groups who stick to the fish-throwing stalls on the main floor. There are small vendors selling books, vintage posters, oddities, and handmade jewelry. The crowd density drops by half once you go down one level.
For Opening Day of Boating Season on the first Saturday, the Montlake Bridge sidewalks fill early with spectators. The less crowded view is from the paths along the south side of the Montlake Cut near the Museum of History and Industry (MOHAI). You get the same parade, more space, and access to the waterfront trail.
May evenings at Gas Works Park draw locals after work for sunset over the skyline. If you want the classic photo from the top of the hill, weekday evenings around 7:30-8 PM in late May catch the golden light without the weekend picnic crowds. Bring a light layer, because the wind off Lake Union picks up after sundown.
Avoid these mistakes
- Packing for summer. Visitors arriving from warmer climates in shorts and sandals get caught by 9°C mornings and damp wind off Puget Sound. May in Seattle still feels like spring, not summer. Layers and closed-toe waterproof shoes will serve you far better than warm-weather gear.
- Canceling outdoor plans because of morning rain. May drizzle in Seattle is typically light mist that clears by noon. If you wait for a perfectly clear morning before leaving your hotel, you'll waste half your days. Locals walk through it without thinking twice. Carry a shell jacket and go.
- Driving to trailheads without checking snow conditions first. The Washington Trails Association website lists current conditions for Cascade and Olympic trails. In May, anything above 1,200 meters (4,000 feet) may be snow-covered and impassable, even if it's sunny and 17°C at sea level in Seattle.
- Assuming SIFF tickets will be available at the door for popular screenings. The headline films and opening-night events sell out online within days of going on sale in late April. Weekday matinees and lesser-known international films are easier to get into, and some of the best discoveries are in those less-promoted slots.
Practical tips for May
May sits between shoulder and high season, so most things don't need advance booking, but a few do. SIFF tickets go on sale in late April, and popular screenings sell out within days. Boat and kayak rentals for Opening Day of Boating Season on the first Saturday should be booked 3-4 weeks ahead. Washington State Ferries to Bainbridge Island and the San Juan Islands start filling on weekends in May, so vehicle reservations through the WSF website are worth making in advance (walk-on passengers don't need reservations). Most restaurants in Ballard, Capitol Hill, and Fremont are fine without reservations on weekdays, but Friday and Saturday evenings at popular spots benefit from booking a day or two ahead. The Link Light Rail runs from Sea-Tac Airport to downtown, Capitol Hill, and the University District, which makes it easy to skip a rental car if you're staying central. Ride-share services cover the rest. Expect some downtown street construction. Seattle's infrastructure projects ramp up when the rain eases, and May typically brings lane closures and detours around the waterfront and South Lake Union. Dress in layers for any indoor-outdoor day. Restaurants and bars tend to keep interiors warm, but patios in Ballard and Fremont can be chilly after sunset even in late May.
FAQ
Is May a good time to visit Seattle?
May is a genuinely good time to visit, likely the 5th best month out of 12. You avoid the heavy rain that runs from November through March (those months average 110-200mm of rainfall each), and you arrive before the July and August summer peak when crowds and prices are highest. The trade-off is that rain hasn't fully stopped. You'll still get about 10 rainy days, and some mornings feel persistently grey. But afternoons frequently clear, daylight lasts past 8:45 PM, and the shoulder-season pricing gives you 20-30% savings on hotels compared to peak summer. If you want guaranteed dry weather, hold out for July. If you want a good balance of weather, cost, and crowd levels, May delivers.
What is the weather like in Seattle in May?
Expect daytime highs around 17.3°C (63°F) and overnight lows near 9°C (48°F). Rainfall averages 56mm over roughly 10 days, a significant drop from winter's 170-200mm months. Humidity sits around 74%. The rain tends to be light drizzle or mist rather than heavy downpours, and it often clears by early afternoon. The second half of May is typically drier and slightly warmer than the first half. Pack layers, a waterproof jacket, and closed-toe shoes. You won't need heavy winter gear, but shorts and sandals are premature for most days.
Is Seattle crowded in May?
Moderately. May is noticeably busier than the winter months but still well below July and August levels. Pike Place Market is always crowded, regardless of season, but attractions like the Space Needle, the Museum of Pop Culture at Seattle Center, and popular hiking trailheads have shorter wait times than summer. SIFF screenings and Northwest Folklife over Memorial Day weekend draw event-specific crowds, but the city doesn't feel packed the way it does from late June through Labor Day.
Does it rain every day in Seattle in May?
No. The 'Seattle always rains' reputation is more accurate for November through February. May averages about 10 rainy days out of 31, and most of that rain is light drizzle rather than steady downpours. You'll likely get stretches of 2-4 consecutive dry, sunny days, especially in the second half of the month. The grey, overcast mornings that do occur tend to clear by midday. Carry a light shell jacket and you'll be fine.
Can I hike in the mountains near Seattle in May?
You can hike lower-elevation trails, but high-altitude routes are likely still snow-covered. Trails below about 900 meters (3,000 feet) in the Cascades and Olympics are generally clear by May, including popular hikes like Rattlesnake Ledge, Twin Falls, and the trails in Discovery Park within Seattle itself. Anything above 1,200 meters (4,000 feet) may require snow gear. Paradise in Mount Rainier National Park at 1,600 meters typically has meters of snow in May. Always check the Washington Trails Association trip reports for current conditions before heading out.
Things to Do in Seattle in May
Free cancellation Chef Guided Food Tour of Pike Place Market
City tour — 2 hours, free cancellation.
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Free cancellation Mt. Rainier National Park Highlights Tour
Outdoor experience — free cancellation.
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Free cancellation Seattle City Highlights Tour
City tour — 3 hours, free cancellation.
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Free cancellation Seattle's Original Guided Harbor Cruise
Cruise — 1 hour, free cancellation.
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Free cancellation Mt. Rainier Day Tour from Seattle
Day trip — free cancellation.
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Free cancellation Seattle City and Snoqualmie Falls Half-Day Guided Tour
Outdoor experience — 4 hours, free cancellation.
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