Things to Do in Key West in March

Q: Is Key West safe for solo travelers?

Key West scores 7.2/10 for solo-traveler safety (see /research/solo-safety/). The island is small, walkable, and has a lower violent-crime rate than most mainland Florida cities. The main concern during March is petty theft in crowded areas along Duval Street during peak evening hours. Keep valuables secure and stay aware on bar-heavy blocks after midnight. During daylight, the island feels approachable and easy to navigate alone.

Q: Is Key West family-friendly in March?

Key West scores 6.2/10 for family friendliness (see /research/family-friendliness/). The island has genuine family-oriented attractions, including the Key West Aquarium, which opened in 1934, the Butterfly Conservatory, and the beaches at Fort Zachary Taylor and Higgs. But March's peak atmosphere on Duval Street skews toward bars and adult nightlife, and spring break noise levels can wear on families with younger children. Staying in quieter neighborhoods and spending days at beaches and nature attractions tends to work better than planting yourselves on Duval.

VerdictExcellent
Ranked#2 of 12
PricesPeak Season

Stay in Key West in March

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March is peak season in Key West, and the island earns it. This is dry-season weather at its most comfortable, with highs near 25°C (76°F) and lows that rarely dip below 23°C (73°F). Warm enough to spend full days in the water without the teeth-chattering mornings of January. Cool enough that walking the Old Town lanes at 2 PM still feels pleasant. Trade winds off the Gulf and Atlantic keep the humidity manageable, and rain barely touches the calendar.

Spring breakers, snowbirds finishing their winter leases, and cruise ship passengers converge on this 4-mile-long island at the same time. Duval Street on a Friday night feels more like a block party than a public road. Mallory Square's sunset celebration draws hundreds into a waterfront space built for dozens, with fire-eaters competing against crowd noise for your attention. The salt air and harbor breeze at 7 PM are pleasant. The shoulder-to-shoulder foot traffic on Whitehead Street, less so.

You get the best weather Key West has to offer, calm seas for diving and snorkeling, and warm evenings on the harbor wall. You pay with the highest accommodation rates of the year and dinner waits in Old Town that test patience. The Tennessee Williams Birthday Celebration fills the last week with literary events. St. Patrick's Day turns Duval green for a full afternoon. Neither approaches Carnival-level fame, but both give March genuine texture.

Why visit in March

Near-perfect dry-season weather with minimal rainfall and comfortable temperatures for swimming, snorkeling, and walking the island all day.
The calmest seas of the year on the reef tract, producing the best underwater visibility for snorkeling and diving along the Florida Keys.
Every restaurant, tour operator, and attraction runs at full capacity with extended hours, so nothing is shuttered or on a reduced schedule.
Cultural events like the Tennessee Williams Birthday Celebration and the St. Patrick's Day festivities on Duval give the month personality beyond sun and sand.
Water temperatures in the mid-20s Celsius (mid-70s Fahrenheit) allow extended ocean time without a wetsuit.

Worth knowing

The highest accommodation rates on the island's calendar, with Old Town guesthouses often enforcing 3- or 4-night minimum stays during spring break weeks.
Spring break overlaps with the tail end of snowbird season and a heavy cruise ship schedule, producing the densest crowds of the year, especially on Duval Street and at Mallory Square.
Popular Old Town restaurants require reservations several days ahead, and walk-in waits on Friday and Saturday nights can stretch past an hour.
The party atmosphere on lower Duval gets loud and rowdy past 10 PM during spring break weeks, which wears thin if you came for quiet.

Best for

Think twice if

Weather measured 25° / 23°C 37mm rain · 5 rainy days · 77% humidity rains perceptibly ~0.5h/day · 95% of mornings dry

Crowds peak

Pack Lightweight, breathable fabrics in cotton or linen. A rash guard for extended snorkeling sessions. Reef-safe sunscreen at SPF 50 or higher, which Florida Keys regulations require near coral reefs.

Dry-season conditions at their most settled. Afternoon warmth is pleasant without tipping into the oppressive heat that arrives by June. Mornings and evenings feel mild, with trade winds keeping the air from sitting heavy on your skin. Expect roughly 5 days of brief rain across the month, typically short showers that clear within 30 minutes and leave the streets steaming faintly in the sun. The humidity is noticeable but never punishing at this time of year.

Year-round climate

Averages from the last 5 years.

Monthly climate averages for Key West
Month	Avg high (°C)	Avg low (°C)	Rainfall (mm)
Jan	23	20	33
Feb	23	22	32
Mar	25	23	37
Apr	26	24	36
May	28	26	57
Jun	29	27	181
Jul	30	28	119
Aug	30	28	149
Sep	30	27	189
Oct	28	26	114
Nov	26	24	62
Dec	24	22	78

Holidays and festivals in March

Public holidays

Good Friday(Good Friday)26 March 2027

Best things to do in March

Snorkeling the coral reef tract

outdoor

The reef sits roughly 10 km (6 miles) south of the island, with brain coral, elkhorn formations, sea fans, and schools of parrotfish. Half-day trips depart from the Historic Seaport in both morning and afternoon windows.

March brings the calmest seas and best underwater visibility of the year, typically 15 to 25 meters (50 to 80 feet). Water temperature around 24°C (75°F) is comfortable without a wetsuit.

Booking tipBook morning trips 3 to 5 days ahead. Morning runs have better light and calmer conditions than afternoon departures.

Day trip to Dry Tortugas National Park

outdoor

Fort Jefferson, a 19th-century hexagonal brick fort on Garden Key, sits 113 km (70 miles) west of Key West. The ferry takes about 2.5 hours each way, with snorkeling in the moat, birding on the island, and fort exploration on arrival.

March seas are calm enough for the open-water crossing to feel comfortable rather than stomach-churning. Migratory birds begin arriving on the islands, and the moat water reaches peak clarity.

Booking tipThe ferry sells out weeks ahead during March. Reserve as early as possible, especially for weekend departures.

Sunset sailing on the Gulf

outdoor

Schooners and catamarans depart the harbor for 2-hour sunset cruises across the Gulf of Mexico, typically including drinks and light food. The western horizon is completely unobstructed from the water.

March sunsets land around 7:30 PM, later than winter months, and dry skies make cloud-free horizons more likely than at any other time of year.

Booking tipWeekday sailings are often available same-day. Weekend slots fill by Thursday.

Biking Old Town and Bahama Village

outdoor

Key West is flat and compact enough that a full loop from the harbor through the shaded residential lanes of Bahama Village, past the Southernmost Point, along Smathers Beach, and back through Truman Waterfront takes under 2 hours with stops.

Mid-20s Celsius temperatures make cycling comfortable all day. The same ride in July at 30°C with 85% humidity is a very different, far less pleasant experience.

Booking tipGrab a rental bike early in the morning during spring break weeks. Old Town shop inventory thins out by mid-morning.

Kayaking the mangrove channels

outdoor

Guided and self-guided routes wind through the mangrove channels off the island's north side and around Stock Island. The root systems shelter juvenile fish, rays, and the occasional nurse shark gliding through knee-deep water.

Low March rainfall keeps the water clear through the channels. You can see the sandy bottom in 1 to 2 meters of water, which goes murky once the summer rains begin in June.

Deep-sea and reef fishing

outdoor

Charter boats run half-day and full-day trips from the Key West Bight targeting yellowtail snapper, cobia, and early-season tarpon on the flats. Reef and backcountry grounds sit within 30 to 60 minutes of the dock.

Calm March seas mean fewer cancelled trips and smoother rides to the fishing grounds. Cobia start moving through the Keys in March, and tarpon begin staging in the backcountry channels ahead of their April peak.

Booking tipPopular captains book 1 to 2 weeks ahead in March. Request early morning departures to beat the afternoon wind.

Tennessee Williams Birthday Celebration events

cultural

Staged readings of the playwright's Key West-period works, author conversations, and curated walks through his former neighborhood around Duncan Street, hosted at theaters and galleries across Old Town.

The celebration runs once a year in the final week of March, timed to Williams' birthday on the 26th. This is the only window for these performances and guided literary walks.

What to eat in March

On menus now

Stone crab claws
Florida's season runs October 15 through May 15, and March catches tend to yield the largest claws of the year. The meat is sweet, firm, and served cold-cracked with mustard sauce at seafood houses along the Historic Seaport.
Hogfish
The Keys' most prized local whitefish, caught by spearfishers on the shallow reefs south of the island. March's calm waters make for consistent catches. The flesh is mild, white, and flaky, typically pan-seared with butter.
Key lime pie
Made from the small, tart Key limes that fruit through spring on the island. Every kitchen has its own version, and the frozen-on-a-stick variety is a warm-weather sidewalk staple across Old Town.
Yellowtail snapper
March's reliable weather means fewer cancelled boat trips and more consistent yellowtail runs on the reef. This firm, mild snapper appears on nearly every Old Town menu, often blackened with local spices or grilled whole.

In markets

Pink shrimp
Wild-caught from the Tortugas shrimping grounds southwest of Key West, Florida pink shrimp hit their stride in spring. Sweet and tender, they show up peel-and-eat at dockside spots around the Key West Bight.

Regular events in March

Tennessee Williams Birthday Celebration

A week of theater, literary scholarship, and site-specific performances honoring the playwright who lived and wrote at his home on Duncan Street.

Late March, typically March 22 through March 28

St. Patrick's Day on Duval StreetFree

Live music stages and green-themed festivities stretch across several blocks of lower Duval from early afternoon into the night, drawing both locals and visitors.

March 17

Key West Garden Club Flower Show at West Martello Tower

Annual flower and orchid exhibition inside the Civil War-era brick tower that houses the Key West Garden Club's tropical gardens on Atlantic Boulevard.

Early March, typically the first or second weekend

Best places this March

Fort Zachary Taylor Historic State Park
park
Built in 1845, the fort anchors the southernmost state park in the continental United States. The beach has coarser sand and rockier footing than Smathers, but the snorkeling directly from shore is better. Shade from the Australian pines along the shoreline makes this the most comfortable beach on the island during March afternoons.
Truman Annex
Higgs Beach and the African Cemetery
beach
A quieter beach on the island's south side, with a memorial to roughly 295 Africans who died here in 1860 after being rescued from slave ships. The beach has a fishing pier and calmer water than the open-Atlantic stretches, and it draws noticeably fewer spring breakers than Smathers.
Casa Marina
Key West Butterfly and Nature Conservatory
attraction
A glass-enclosed habitat holding around 50 butterfly species alongside flamingos and tropical birds. March's warm outdoor air closely matches the conservatory temperature inside, so the transition feels seamless rather than jarring. The garden paths are shaded and fragrant with flowering vines.
Old Town
Truman Waterfront Park
park
A 6-acre waterfront park on the harbor with an amphitheater, splash pad, and open green space. The sunset views face the same direction as Mallory Square's famous celebration, but without the crowd density. A calmer alternative for the evening light.
Truman Annex
West Martello Tower and Key West Garden Club
garden
A Civil War-era brick tower converted into a tropical garden with bougainvillea climbing the old walls and orchids tucked into crevices. The annual Garden Club flower show in early March fills the grounds with local growers' best specimens.
Casa Marina
Mel Fisher Maritime Heritage Museum
museum
Gold bars, silver coins, and Colombian emeralds recovered from the Nuestra Señora de Atocha, a Spanish galleon that sank off the Keys in 1622. The museum sits on Greene Street. A welcome cooler-hours option when the midday sun pushes you off the beach.
Old Town
Harry S. Truman Little White House
historic site
The restored winter residence where President Truman spent 175 days during 11 working vacations between 1946 and 1952. Guided tours run every 20 minutes through rooms preserved to their 1940s state. The shaded grounds offer a calm retreat from the surrounding streets.
Truman Annex
Southernmost Point buoy
landmark
Installed in 1983 at the corner of Whitehead and South Streets, this is the most photographed landmark in Key West. March peak crowds mean the photo line can stretch 20 to 30 minutes by mid-morning. Arrive before 8 AM for a short wait and better light.
Old Town

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Reef-safe sunscreen, SPF 50+Florida Keys regulations require reef-safe formulas near coral reefs. The UV index at 24.5°N latitude is already aggressive in March, and reflected light off the water intensifies exposure during boat trips and beach time. Shop
Rash guard or swim shirtExtended snorkeling sessions in March's clear water often run 90 minutes or more. Sunburn on your back and shoulders happens faster than you expect when you are face-down in the water. Shop
Light rain shell, not an umbrellaThe rare March shower arrives with gusty wind that renders umbrellas useless. A packable shell dries in minutes and fits in a daypack for the rest of the day. Shop
Water shoes or sandals with gripFort Zachary Taylor's beach has a rocky limestone bottom that can cut bare feet. The dock areas around the Historic Seaport get slippery. Flip-flops without traction are a rolled-ankle risk. Shop
Polarized sunglassesThe glare off the water and white concrete at this latitude is intense, especially during boat trips. Polarized lenses cut the reflected glare that standard tinted lenses let through. Shop
Lightweight cotton or linen layersEvenings can cool to the low 20s Celsius (low 70s Fahrenheit) with wind off the Gulf. A light long-sleeve shirt or linen button-down keeps the breeze comfortable without overheating. Shop
Moisture-wicking base layersAt 77% humidity, cotton underwear and socks stay damp all day. Synthetic or merino-blend base layers dry faster and prevent chafing during long walks and bike rides. Shop
Reusable water bottleMarch heat is deceptive. The air reads 25°C but the sun at 24.5°N latitude is strong, and walking Old Town's exposed streets all day without water leads to headaches and fatigue faster than the mild temperature suggests. Shop

Insider tips

The nightly sunset ritual at Mallory Square is famous, but Truman Waterfront Park sits 10 minutes south and faces the same horizon with a fraction of the crowd. Arrive by 6:30 PM in March to claim a bench along the seawall.
The best stone crab and fresh-catch seafood tends to come from the working-dock spots around the Key West Bight, where the charter captains eat lunch, not the sit-down restaurants with Duval Street frontage.
Bikes beat cars completely on this island in March. Street parking is metered, time-limited, and genuinely impossible during spring break weekends. A rental bike covers the entire island in under an hour and eliminates the parking problem.
When the spring break crowds on Duval get thick, cross over to Bahama Village. The residential blocks between Petronia Street and Truman Avenue feel like a different island, with quieter cafes, front-porch conversations, and actual shade from the tropical trees.
The Duval Loop bus is free, runs through Old Town and New Town, and is almost entirely unused by visitors. It drops you within walking distance of every major attraction and saves your legs after a full day of beach and biking.

Avoid these mistakes

Driving to Key West and expecting to find parking during spring break. Street parking is metered, time-limited, and fills by mid-morning during peak weeks. Fly in, or park at your accommodation and use a bike for everything.
Spending all your time on Duval Street and missing the rest of the island. Bahama Village, the Truman Waterfront, the Historic Seaport, and the quiet residential lanes near Casa Marina give you a fuller and more honest picture of Key West.
Skipping sunscreen because 25°C does not feel dangerously hot. The UV index at this latitude is already strong in March, and reflected light off the water makes it worse. Sunburn is the single most common March visitor complaint.
Booking a snorkeling trip or flats fishing charter without checking the tide schedule. Reef visibility, kayak channel depth, and backcountry flats fishing all depend on tidal conditions in these shallow waters. A low tide at noon on the flats means no fish and no shade.

Practical tips for March

Book accommodations 6 to 8 weeks ahead for March stays in Old Town. Many guesthouses fill their March calendars before the new year. Restaurant reservations at popular spots on Duval Street and around the Historic Seaport should go in 3 to 5 days before your visit. If arriving by car on US-1, the final 80 km (50-mile) stretch from Marathon to Key West is a two-lane road with limited passing lanes, and spring break traffic can add 30 to 45 minutes beyond the GPS estimate on busy weekends. The Duval Loop bus runs free and covers most of Old Town and New Town, which saves the daily headache of hunting for metered street parking. Dress is casual everywhere on the island, including dinner spots. Clean shorts and a collared shirt are as formal as Key West gets. Scooter rentals are popular but require extra caution during spring break weeks, when pedestrian traffic spills off the sidewalks and onto the road along lower Duval. If you plan to snorkel or dive, bring your own mask and snorkel if you have a preferred fit. Rental gear on the boats is functional but heavily used.

FAQ

Is March a good time to visit Key West?

March is one of the two or three best months on the calendar for weather. Dry skies, calm seas, and comfortable temperatures make it ideal for water activities and outdoor exploration of the island. The trade-off is peak-season pricing and the heaviest crowds of the year from overlapping spring break, snowbird, and cruise ship traffic. If reliable weather matters more to you than solitude, March delivers.

Is Key West crowded in March?

Very. The overlap of spring break college students, winter snowbirds finishing their leases, and cruise ship day-trippers creates the densest visitor concentration of the year. Old Town sidewalks go shoulder-to-shoulder on weekend evenings, especially along Duval. That said, mornings before 10 AM are calm by comparison, and neighborhoods like Bahama Village and the area around Casa Marina see a fraction of the foot traffic that Old Town draws.

Can you swim in Key West in March?

Comfortably. Ocean temperatures are warm enough for extended swimming and snorkeling without a wetsuit. The beaches on the island's south side, including Fort Zachary Taylor and Higgs Beach, have calmer water than the open-Atlantic stretches. Smathers Beach on the southeast shore has the longest sandy stretch but draws the biggest spring break crowds.

Is Key West safe for solo travelers?

Key West scores 7.2/10 for solo-traveler safety (see the TTDI Solo-Safety Index). The island is small, walkable, and has a lower violent-crime rate than most mainland Florida cities. The main concern during March is petty theft in crowded areas along Duval Street during peak evening hours. Keep valuables secure and stay aware on bar-heavy blocks after midnight. During daylight, the island feels approachable and easy to navigate alone.

Is Key West family-friendly in March?

Key West scores 6.2/10 for family friendliness (see the TTDI Family-Friendliness Index). The island has genuine family-oriented attractions, including the Key West Aquarium, which opened in 1934, the Butterfly Conservatory, and the beaches at Fort Zachary Taylor and Higgs. But March's peak atmosphere on Duval Street skews toward bars and adult nightlife, and spring break noise levels can wear on families with younger children. Staying in quieter neighborhoods and spending days at beaches and nature attractions tends to work better than planting yourselves on Duval.