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Stay in Santorini in August
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August on Santorini is the island at full volume. The caldera-rim footpath between Fira and Firostefani slows to a shuffle by mid-morning, and the kastro viewpoint in Oia fills shoulder-to-shoulder 90 minutes before sundown. Daytime highs sit near 30°C (86°F) under cloudless Aegean skies, with barely 3mm of rainfall for the entire month. The meltemi winds blow hard enough to rattle shutters and scatter napkins off taverna tables, keeping the west-facing caldera villages bearable but grounding smaller ferries for a day or two when the gusts persist.
To be fair, there are real reasons this is peak season. The sea warms to 25-26°C (77-79°F), comfortable enough for long swims off Kamari's dark volcanic shore or the red-cliff cove near Akrotiri. Every catamaran tour, winery tasting room, and fish taverna operates at full capacity. The Dormition of the Virgin, Greece's biggest summer holiday, layers domestic visitors onto the already-packed caldera villages. Processions wind through Pyrgos and Mesa Gonia. The harbor towns stay loud past midnight.
If guaranteed sunshine and warm water matter more than solitude, August delivers both. If your image of Santorini involves quiet caldera evenings and empty marble lanes, late September offers comparable sea warmth with a fraction of the foot traffic.
Why visit in August
- Virtually zero chance of rain for the entire 31 days, so every outdoor plan holds without a weather contingency.
- The sea reaches its annual peak warmth in August, making the volcanic shores at Perissa and Perivolos comfortable for extended swims without any thermal protection.
- Every tour operator, winery, and restaurant on the island is open and fully staffed, including smaller family-run places in Megalochori and Emporio that close by November.
- Long daylight with sunrise before 06:40 and over 14 hours of usable light to explore the caldera rim, the archaeological sites, and the eastern beach towns.
- The meltemi northerly winds keep August temperatures more tolerable than equivalent heat on the Greek mainland, where Athens frequently pushes past 38°C (100°F).
Worth knowing
- Accommodation rates reach their annual ceiling, often 50-80% above the yearly average, and most caldera-view properties in Oia and Imerovigli sell out months in advance.
- Cruise-ship traffic peaks in August, with 3 to 5 large vessels docking on busy days and flooding Fira's narrow lanes with day-trippers between 10:00 and 16:00.
- The meltemi can gust hard enough to cancel high-speed ferry routes from Piraeus for 1-2 consecutive days, disrupting island-hopping itineraries to Ios, Naxos, and Mykonos.
- Shade is scarce on the caldera rim and along the hiking trail to Oia, making midday outdoor activity genuinely unpleasant in direct sun on exposed volcanic rock.
Best for
Think twice if
Relentlessly sunny and bone-dry. August and July share the title of hottest months on the island, and you can expect unbroken blue skies for the full 31 days. The meltemi is the defining weather feature, blowing from the north most afternoons and sometimes sustaining for 2-3 consecutive days at a stretch. Morning calm tends to give way to a steady breeze by early afternoon, which makes the west-facing caldera side more comfortable than the sheltered eastern beaches. Nights cool enough to sleep with windows open in most caldera-rim villages, and the dry wind keeps the humidity from feeling oppressive despite the island setting.
Seasonal caution
- Meltemi winds can gust above 40 km/h (25 mph) for 2-3 consecutive days, cancelling high-speed ferries and making catamaran excursions uncomfortable. Check wind forecasts 48 hours before any inter-island ferry booking.
- Wildfire risk across Greece rises in August. Santorini has limited vegetation, but smoke from fires on the mainland or larger Cycladic islands can occasionally reduce visibility and air quality for a day or two.
- The UV index reaches 9-10 throughout August. Sunburn happens fast on the reflective white surfaces of the caldera villages, and the cooling wind masks how much UV your skin absorbs.
Year-round climate
Averages from the last 5 years.
| Month | Avg high (°C) | Avg low (°C) | Rainfall (mm) |
|---|---|---|---|
| Jan | 16 | 12 | 41 |
| Feb | 15 | 12 | 35 |
| Mar | 17 | 12 | 32 |
| Apr | 20 | 15 | 13 |
| May | 23 | 18 | 16 |
| Jun | 28 | 22 | 5 |
| Jul | 30 | 25 | 1 |
| Aug | 30 | 25 | 3 |
| Sep | 27 | 23 | 5 |
| Oct | 23 | 19 | 10 |
| Nov | 21 | 17 | 21 |
| Dec | 17 | 14 | 60 |
Holidays and festivals in August
Public holidays
- Assumption Day(Κοίμηση της Θεοτόκου)15 August 2027
Headline events
Koimisis tis Theotokou (Dormition of the Virgin Mary)
August 15
The biggest religious holiday of the Greek summer and a de facto second Easter. Church services, processions, and panigiri celebrations take over every village on Santorini on the day itself. Panagia Episkopi in Mesa Gonia hosts one of the island's most attended liturgies, with worshippers arriving from across the Cyclades. Shops and services close, ferry schedules shift, and the island takes on a festive, slightly chaotic energy that lasts through the following weekend.
Best things to do in August
Sunset catamaran cruise along the caldera
boat tourA 5-hour sailing trip from Vlychada or Ammoudi Bay that circuits the caldera, passes the volcanic islets of Nea Kameni and Palea Kameni, stops for swimming at the hot springs, and anchors off the rim for sunset. Most boats carry 20-40 passengers and include dinner on board.
August offers the calmest sea conditions outside of July, and sunset around 20:15 means you finish the golden hour without an uncomfortably late return. The warm water also makes the hot springs swim far more pleasant than in spring or autumn.Booking tipBook at least 10 days ahead. August slots, especially for smaller boats under 20 passengers, fill weeks in advance.
Swim at Red Beach near Akrotiri
beachA short, steep scramble from a parking area leads to a cove backed by red volcanic cliffs. The beach is small, pebbly, and dramatic. Water-taxi services from Akrotiri village run every 20-30 minutes in August for those who prefer to skip the trail.
The water taxi only operates reliably from June through September. August sea conditions on this south-facing shore stay calmer than the exposed northern bays because the meltemi pushes water toward the sheltered side.Booking tipArrive before 10:00 to claim a spot on the sand. By noon, latecomers end up on the rocks.
Early-morning hike from Fira to Oia
hikingThe 10.5 km (6.5 mi) trail along the caldera rim passes through Firostefani and Imerovigli before descending into Oia. The route takes 3-4 hours and offers unobstructed views of the caldera, Nea Kameni, and Thirasia from elevated ridgelines.
Zero-rain guarantee means no slippery volcanic rock. Starting at 06:30 lets you finish before the heat builds, and the morning light over the caldera is softer and less hazy than the afternoon glare.Booking tipNo booking needed, but arrange a return bus or taxi from Oia in advance. The bus back to Fira fills quickly after 11:00.
Visit the Akrotiri excavation
archaeologyA Minoan-era settlement buried by volcanic eruption around 1600 BCE and preserved under ash for over 3,600 years. The site shelters multi-story buildings, drainage systems, and storage vessels. The absence of human remains suggests the inhabitants evacuated before the final blast.
The modern roof over the excavation provides shade, making this one of the few major Santorini attractions comfortable to visit at midday in August. Crowds thin after 13:00 when most visitors head for the beaches.Booking tipBuy tickets online to skip the entrance queue. Afternoon visits between 13:00 and 15:00 tend to be the least crowded.
Wine tasting on the Santorini wine route
food and drinkRoughly a dozen wineries welcome visitors, concentrated around Pyrgos, Megalochori, and Exo Gonia. Tastings typically cover Assyrtiko, Nykteri (barrel-fermented white), and Vinsanto, a sweet dessert wine made from sun-dried grapes. Several estates sit at the caldera edge with tasting terraces facing the sea.
August marks the final weeks before the grape harvest, which typically starts in late August or early September. Some wineries offer pre-harvest vineyard walks that are unavailable the rest of the year.Booking tipReserve sunset tasting slots 1-2 weeks ahead, especially at caldera-facing estates. Midday slots are easier to secure.
Snorkeling at Amoudi Bay
water sportBelow Oia, a steep staircase of roughly 300 steps descends to Amoudi Bay, a tiny fishing harbor with clear water and volcanic rock formations. The snorkeling along the base of the red cliffs reveals sea urchins, octopus, and small reef fish in water 2-3 meters deep close to shore.
Water clarity peaks in August because there is essentially no runoff from rain, and the sea warmth lets you snorkel for an hour or more without any thermal protection.Booking tipNo booking needed. Go before 09:00 or after 17:00 to avoid the midday congestion of visitors heading down for the fish tavernas.
Night swim at Perissa or Perivolos beach
nightlifeThe long black-sand beach stretching from Perissa south to Perivolos has beach bars that stay open past midnight in August. Several light the waterline and play music until 02:00. The volcanic sand retains the day's heat well into the evening, warm underfoot even after dark.
Only in July and August does the sea stay warm enough at 22:00 for a comfortable swim without wind chill. The beach bar scene on this stretch also only runs at full capacity during these two months.Booking tipNo booking needed. Sunbed reservations at some beach bars can be made by phone for same-day visits.
Explore Pyrgos village at dusk
sightseeingPyrgos is the highest village on Santorini, built around a Venetian kasteli at roughly 350 meters above sea level. The 360-degree view from the top takes in the caldera, the airport, and the eastern beaches. Unlike the kastro in Oia, the sunset crowd here numbers in the dozens, not the thousands.
The Dormition celebrations center partly on Pyrgos, where churches are decorated and candles line the narrow lanes on the evening of the 14th. Even on non-festival evenings, the warm air at elevation sits 2-3°C cooler than at sea level, making the climb more rewarding than in the shoulder months.Booking tipNo booking needed. Park at the base of the village. The lanes are too narrow for vehicles.
What to eat in August
In season: fruit
Santorini cherry tomatoes (tomatinia)
These small, intensely sweet tomatoes peak in August. The volcanic ash soil and minimal irrigation concentrate the sugars until each fruit tastes closer to sun-dried than fresh. Look for them split and served raw with local chloro cheese at tavernas in Pyrgos and Megalochori.
Fresh figs
Fig trees across the Cyclades drop their ripest fruit in August. You will find dark-skinned figs served with local soft cheese or Santorini thyme honey at breakfast tables in Firostefani and Imerovigli. They bruise fast, so the best ones tend to stay on the island.
On menus now
Tomatokeftedes
Deep-fried tomato fritters made from the island's cherry tomatoes, mixed with mint and onion. August is when the base ingredient reaches its most concentrated flavor. The texture falls somewhere between a falafel and a hash brown, crisp on the outside and soft within.
Fava Santorinis
A yellow split pea puree particular to the island, topped with raw onion and capers grown on the caldera slopes. The Santorini fava bean grows in the same volcanic soil that produces the tomatinia, and the harvest season overlaps with August. Smooth, earthy, and nothing like the fava you find on the Greek mainland.
What to drink
Assyrtiko wine
Santorini's signature white grape, grown in low basket-trained vines called kouloura that protect against the meltemi. August heat finishes the ripening cycle, and several wineries near Pyrgos and Exo Gonia pour the current vintage alongside older barrel-aged bottlings. Crisp, mineral, high in acidity. Pairs well with the tomato fritters.
In markets
White eggplant
A Santorini-specific cultivar with pale skin and a milder, less bitter flavor than the purple variety common across Greece. August is harvest time. You will find it grilled whole, baked into moussaka, or mashed into a dip called melitzanosalata at tavernas across the island.
Regular events in August
Metamorphosis tou Sotiros (Transfiguration of the Savior)Free
A Greek Orthodox feast day observed at churches dedicated to the Transfiguration across the island, with morning liturgies and small local panigiri gatherings in the churchyards.
August 6Ifestia (Volcano Festival)Free
A dramatic fireworks display simulating a volcanic eruption over Nea Kameni, viewed from the caldera rim in Fira and surrounding villages. Dates shift from year to year. Worth checking the Thira municipality's event calendar, which typically confirms the schedule in July.
Variable, often late August or early SeptemberOpen-air cinema screenings in Kamari
The outdoor cinema in Kamari runs nightly screenings throughout August, typically showing recent international releases with Greek subtitles. The garden setting with a bar makes it a quieter alternative to the caldera crowds.
Nightly throughout AugustTrygos (grape harvest begins)
The Santorini grape harvest typically starts in the last week of August, earlier than most of mainland Greece due to the volcanic soil and intense summer heat. A handful of wineries in the Pyrgos and Megalochori area welcome visitors during the first picking days before the pace accelerates in September.
Late August, typically last weekBest places this August
Museum of Prehistoric Thera
museumOpened in 2000, this air-conditioned museum in Fira houses the frescoes and artifacts from the Akrotiri excavation. The Spring Fresco and the Boxing Boys fresco are the standout pieces. A strong complement to the dig site itself, and a welcome escape from the August heat.
FiraAncient Thera
archaeological siteRuins of a Hellenistic and Roman city on the ridge of Mesa Vouno, 396 meters above sea level, between Kamari and Perissa. The hike up from the Kamari side takes about 45 minutes on a switchback path. In August, go at sunrise. The site is entirely unshaded and the ascent faces east, catching the full morning sun.
Mesa VounoThree Bells of Fira
churchThe blue-domed church dating to 1757 that appears on most Santorini postcards and travel guides. In August, the morning light between 07:00 and 08:30 produces the cleanest photographs before the caldera path fills. The church sits along the main walking route in Fira.
FiraVlychada beach and lunar landscape
beachA south-facing beach backed by sculpted white volcanic cliffs that look like they were carved by wind and water over millennia. Vlychada draws fewer visitors than Perissa or Kamari, even in August, because it sits farther from the main bus routes. The small marina at the western end is where several catamaran tours begin.
VlychadaSkaros Rock, Imerovigli
viewpointA volcanic promontory extending from the caldera rim at Imerovigli, once the site of a medieval Venetian fortress. The scramble to the tip takes roughly 20 minutes and rewards with a 270-degree panorama of the caldera. In August, do this before 09:00. The rock is fully exposed, with the wind and sun hitting you from every direction.
ImerovigliEmporio village
villageA fortified medieval settlement in the island's interior, with a narrow-laned kasteli core that stays several degrees cooler than the caldera rim. Far fewer tourists pass through here than Oia or Fira, even in peak August. The old watchtower known as Goulas at the highest point offers a perspective entirely different from the caldera views.
EmporioArchaeological Museum of Thera
museumFounded in 1960, this small museum near the cable car station in Fira covers finds from Ancient Thera and other island sites predating the Akrotiri dig. Climate-controlled and rarely crowded, it makes a good 30-minute stop between the caldera walk and lunch, especially on the hottest August afternoons.
Fira
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Insider tips
The sunset viewpoint that every guidebook recommends, the kastro ruins at Oia's western tip, fills to standing-room capacity 2 hours before sundown in August. The section of caldera path between Firostefani and Imerovigli near the Skaros Rock trailhead offers a nearly identical view and attracts a fraction of the crowd.
Cruise ships typically depart by 17:00. Time your visit to Fira's main pedestrian street for late afternoon, after the day-tripper wave has receded, and the town feels noticeably calmer.
The KTEL bus from Fira to Oia fills past standing capacity in August. The first departure at 07:00 is the most comfortable ride of the day. The Fira-to-Akrotiri route is consistently less packed because fewer visitors head to the island's south end.
The fish tavernas at Amoudi Bay below Oia are famous, but the staircase descent and return climb in August midday heat is grueling. Go at 15:00 when the worst heat has passed but the kitchen still serves, or take the small road that loops around from the parking area above.
Perivolos, the southern extension of Perissa beach, draws a younger crowd with its beach bars and DJ sets after dark. If you want the same black sand with less noise, walk 10 minutes north along the Perissa waterline toward the Mesa Vouno headland.
Avoid these mistakes
- Scheduling the Fira-to-Oia hike for midday. The trail has almost no shade from start to finish, and the exposed volcanic rock radiates stored heat. Hikers who start after 10:00 regularly struggle with heat exhaustion before reaching the descent into Oia. Start before 07:00.
- Treating ferry schedules as fixed. The meltemi cancels high-speed services from Piraeus and inter-island routes with little advance warning in August. Build a 1-day buffer into any island-hopping plan, and keep your return flight on a separate day from your last ferry leg.
- Skipping sun protection because of the wind. The meltemi feels cooling and masks the intensity of August UV exposure. First-day sunburns are extremely common because visitors mistake the breeze for moderate conditions.
- Expecting a quiet, romantic atmosphere everywhere. August Santorini on the caldera rim is closer in energy to a busy Mediterranean resort than a serene island escape. For genuine calm, head to the interior villages like Emporio or Megalochori, where foot traffic stays light even at the peak of the month.
Practical tips for August
Book accommodation and catamaran tours 3-4 months ahead for August stays. The KTEL bus network runs expanded summer schedules but fills quickly on the Fira-Oia and Fira-Kamari routes, so budget extra waiting time or consider renting an ATV. Car parking in Oia is nearly impossible during August. Athinios port gets chaotic on busy ferry days, especially around the Dormition holiday when domestic traffic spikes. Arrive 60 minutes before your departure. Most caldera-rim restaurants in Fira and Oia require dinner reservations weeks in advance for any August evening. Dress expectations at the nicer caldera restaurants lean smart-casual, with no swimwear at the table. ATMs in Fira and Oia sometimes run low on cash toward the end of a busy weekend, so carry a backup card that works internationally. The Akrotiri excavation and the museums in Fira accept online ticket purchases, which saves 15-30 minutes of queue time on peak mornings.
FAQ
Is August a good time to visit Santorini?
August is good but not ideal. The weather is flawless, with dry heat, zero rain, and the warmest sea of the year. But it is also the most crowded and most expensive month on the island. If you want guaranteed sunshine and do not mind sharing the caldera with large crowds, August works well. If you prefer a quieter experience at lower cost, late September and early October offer warm conditions with significantly fewer visitors.
How crowded is Santorini in August?
Peak crowded. Oia's main footpath and sunset viewpoint operate at or beyond comfortable capacity most afternoons. Fira's pedestrian street fills with cruise-ship passengers on days when multiple vessels dock. The eastern beach towns like Kamari and Perissa feel less congested, and interior villages such as Pyrgos and Emporio remain comparatively calm even in peak season.
Can the meltemi winds disrupt travel plans in August?
Yes. The meltemi blows from the north across the Aegean and reaches its strongest sustained episodes in July and August. Bouts lasting 2-3 days can cancel high-speed ferry services and make small-boat excursions rough. Flights are rarely affected. Build at least one buffer day into any island-hopping itinerary that touches Santorini this month and check marine weather forecasts 48 hours before each ferry.
What should I wear in Santorini in August?
Light, breathable fabrics in pale colors handle the heat and humidity best. Linen and cotton are the local defaults. You will need grippy footwear for the polished marble lanes and volcanic trails. A windbreaker helps on evening boat trips and at meltemi-exposed lookouts. Caldera-view restaurants expect smart-casual attire at dinner, so pack at least one outfit beyond beachwear.
Is it too hot for outdoor activities in Santorini in August?
Not if you time them well. Mornings before 10:00 and late afternoons after 17:00 are comfortable for hiking, village walks, and sightseeing. The midday window between 12:00 and 16:00 is best spent at the beach, inside the covered Akrotiri excavation, or in one of the air-conditioned museums in Fira. The meltemi makes the caldera side breezier than the sheltered eastern coast throughout the day.
Things to Do in Santorini in August
Free cancellation Half-Day Exclusive Catamaran Cruise in Santorini with Meal and Open Bar
Day trip: 5 hours, free cancellation.
via Viator
Free cancellation Private Santorini Tailor Made - Choice of the Guest!
Day trip: free cancellation.
via Viator
Free cancellation Santorini Wine Adventure with 12 Wine Tastings, Tapas and Sunset
Cooking class: 4 hours, free cancellation.
via Viator
Free cancellation Half Day Premium Catamaran Cruise in Santorini including Oia
Day trip: 5 hours, free cancellation.
via Viator
Free cancellation Santorini Catamaran Cruise with Swim-Stops, Greek Meal and Sunset
Cruise: 5 hours, free cancellation.
via Viator
Free cancellation Santorini Caldera Cruise Tour (Volcano, Hot Springs, Thirassia)
Day trip: 6 hours, free cancellation.
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