Santorini in September: Weather, Crowds, Hotels, and Travel Tips

Greece › Santorini › September Weather
Updated: July 19, 2026 • By Santorini Dave
Questions? dave@santorinidave.com

See Also
• Where to Stay in Santorini
• Best Hotels in Santorini
• Best Restaurants in Santorini
• Best Things to Do in Santorini
• Best Santorini Wineries
• Best Boat Tours in Santorini

Is September a Good Time to Visit Santorini?

September is my favorite month to visit Santorini. The weather is warm, the sea is near its warmest, almost every hotel, restaurant, beach club, winery, and tour is operating, and the island becomes gradually easier to enjoy as the month progresses.

Do not mistake September for a quiet off-season month. The first half still feels like high season, with expensive hotels, busy ferries, crowded buses, full boat tours, and packed Oia sunset viewpoints. The more noticeable improvement comes during the final 10 to 14 days, when crowds begin to ease without the widespread seasonal closures or less dependable weather of late October.

My advice: Choose early September for the most reliable beach weather and liveliest atmosphere. Choose late September for a better balance of swimming, sightseeing, lower heat, and slightly smaller crowds. For most couples, honeymooners, and first-time visitors, September is better than August.

Best For: Couples, honeymooners, swimmers, boat tours, wineries, hiking, sightseeing, photography, and travelers seeking summer weather without peak-August intensity.

Skip September If: You want genuinely low prices, empty villages, cool hiking weather, or complete freedom to book hotels and activities at the last minute.

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Santorini in September at a Glance

• Weather: Warm, sunny, and generally more comfortable than July or August.
• Swimming: Excellent. The sea is at or near its warmest of the year.
• Rain: Usually limited, though brief showers become more possible late in the month.
• Wind: Often calmer than August, but windy periods and rough seas are still possible.
• Crowds: Very busy early in the month and gradually more manageable toward the end.
• Prices: High in early September. Better value becomes easier to find later in the month.
• What Is Open: Almost everything. September remains a full tourism month.
• Main Advantage: Warm sea and dependable summer conditions with less oppressive heat than August.
• Main Drawback: Early September is still crowded and expensive.

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Early September vs. Late September

The difference between early and late September is important when choosing travel dates.

• Early September, September 1 to 15: This is effectively an extension of high season. Days are hot, the sea is very warm, nightlife is strong, and beach clubs are busy. Hotels, boat tours, ferries, rental cars, sunset restaurants, and popular Oia locations remain under heavy demand.
• Late September, September 16 to 30: The island becomes noticeably more relaxed, especially after European schools have resumed. Hotels and restaurants remain open, beaches are still active, and swimming is usually excellent. Days become slightly cooler, evenings breezier, and the chance of a cloudy or showery spell slowly increases.

Late September is my favorite part of the month. It offers most of the benefits of summer without quite as much pressure. But the change is gradual, not dramatic. Oia sunset, Fira, Athinios Port, and major cruise-ship days can still be crowded at the end of September.

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What Is Open in September?

September remains firmly within Santorini’s main tourist season. Closures should not influence your decision to visit.

• Hotels: Virtually all seasonal hotels remain open throughout the month, including caldera resorts, beach hotels, and small boutique properties.
• Restaurants: Restaurants are fully operating in Fira, Firostefani, Imerovigli, Oia, Pyrgos, Ammoudi Bay, Kamari, Perissa, and Perivolos.
• Beach Clubs: Organized beaches, sunbed operations, waterfront restaurants, and beach clubs remain open. They may feel quieter late in the month but do not generally shut down in September.
• Boat Tours: Caldera cruises, catamaran tours, volcano trips, and private charters run regularly when sea conditions allow.
• Wineries: Winery tasting rooms and wine tours are fully operating. September is excellent for visiting, though most of Santorini’s unusually early grape harvest is generally completed by September.
• Attractions: Ancient Akrotiri, Ancient Thera, museums, archaeological sites, and major attractions maintain summer schedules.
• Nightlife: Fira remains lively. Clubs and bars are busiest early in September but there is still a good nightlife scene later in the month.
• Ferries: Main ferry routes remain frequent, including connections with Athens, Mykonos, Naxos, Paros, Milos, and Crete.

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What to Book Before You Arrive

September is easier than August, but it is not a good month to arrive without reservations, particularly during the first half.

• Hotels: Book well ahead for specific caldera views, private pools, honeymoon suites, and family rooms. Late September has more availability, but the best hotels remain popular.
• Boat Tours: Reserve your Santorini boat tour before arrival and schedule it near the beginning of your stay. Strong wind can still force changes.
• Wine Tours: Book sunset tastings and small-group winery tours ahead. September is popular for wine tourism even though the main harvest is usually earlier.
• Ferries: Book important departures in advance, especially high-speed routes and travel during the first half of the month.
• Rental Cars: Reserve ahead when you need an automatic car, airport or port pickup, or a vehicle large enough for a family.
• Restaurants: Reserve famous sunset restaurants and the meals you care most about. Early September still requires August-style planning at the most popular places.
• Transfers: Arrange airport and port pickup when timing matters. Taxis remain limited, and ferry arrivals at Athinios can be hectic.

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September Weather in Santorini

September has some of Santorini’s best all-around weather. It is warm enough for beaches and swimming but generally more comfortable for walking, sightseeing, and outdoor dining than August.

Typical afternoon highs fall from around 28°C (82°F) near the beginning of the month to roughly 25°C (77°F) toward the end. Hotter spells are possible, particularly in early September. Evenings are usually pleasant, though exposed caldera restaurants and boat trips can feel cool when the wind picks up.

September remains mostly dry and sunny. A brief shower or cloudy period is possible, especially late in the month, but rain is not normally a major factor in trip planning. October brings a more meaningful increase in weather variability.

The Meltemi summer wind usually becomes less persistent as September progresses, but it does not disappear on a schedule. Windy days can still bring choppy water, ferry delays, boat-tour changes, and breezy conditions on exposed beaches.

Daylight decreases noticeably through the month. Sunset is around 7:50pm at the beginning of September and shortly after 7:00pm near the end. Check the exact sunset time before booking dinner or planning the Fira-to-Oia hike.

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Can You Swim in Santorini in September?

Yes. September is one of Santorini’s best swimming months. The sea retains the heat accumulated during summer and generally stays around 24°C to 25°C (75°F to 77°F). For most travelers, swimming is just as comfortable as in August.

Kamari, Perissa, and Perivolos remain fully organized, with sunbeds, restaurants, shops, and bus service. Late September is particularly enjoyable because the beaches are still operating but usually have more available space.

Wind direction matters more than the date. One side of the island can be rough while another is calm, so ask your hotel which beach is most sheltered that day.

Hotel pools are less predictable than the sea. Many caldera pools are small, shaded for part of the day, and unheated. An unheated pool can feel chilly during late-September mornings, windy afternoons, and after sunset. Travelers who care about daily pool time should look for a hotel with a heated pool.

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Best Things to Do in Santorini in September

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Take a Caldera Boat Tour: September offers warm swimming stops, pleasant deck temperatures, and beautiful evening light. Book the cruise near the beginning of your stay in case wind forces a change.

Walk the Fira-to-Oia Trail: September is much better for hiking than July or August, particularly late in the month. Start early because the route is exposed and can still become hot by midday.

Spend a Day at the Beach: Do not treat September as too late for a beach holiday. The sea is warm, beach facilities are open, and late September is often more comfortable than August for sitting in the sun.

Visit Santorini’s Wineries: Cooler afternoons make winery visits more comfortable than in peak summer. Santorini’s harvest generally begins unusually early, often in August, so do not choose September solely in the hope of seeing grapes picked. Tastings and tours are excellent regardless.

Attend the Ifestia Festival: The annual volcanic fireworks celebration is held in September. The 2026 event is scheduled for September 19. Confirm the date before building a trip around it, as event details can change.

Explore Pyrgos, Megalochori, and Emporio: September’s lower heat makes the inland villages more enjoyable to explore. Pyrgos is particularly good near sunset, though its steep lanes and steps remain difficult for anyone with limited mobility.

Visit Ancient Akrotiri and Ancient Thera: Both are easier to appreciate without August’s worst heat. Ancient Akrotiri is covered, while Ancient Thera remains exposed and is best visited early.

Watch Sunset Beyond Oia: Oia remains crowded, especially early in September. Imerovigli, Firostefani, a caldera boat tour, or a hotel terrace often provides a calmer sunset experience.

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Where to Stay in Santorini in September

September is an excellent month to stay on the caldera. Evenings remain warm enough to use private terraces, and walking between villages becomes more comfortable as the month progresses.

• Imerovigli: My top September choice for romance, caldera views, sunset views, and relative quiet. It feels less hectic than Oia but still has excellent hotels and restaurants.
• Firostefani: The best compromise between scenery and convenience. It has caldera views and good restaurants and is about a 10 to 15-minute walk from central Fira.
• Fira: Best for buses, restaurants, nightlife, shopping, and travelers without a rental car. It remains busy, but September temperatures make walking around town more pleasant.
• Oia: Best for iconic scenery, luxury hotels, and travelers who want to stay within the postcard setting. It is still crowded around sunset, particularly early in September.
• Kamari: Best for families, straightforward beach days, and a flatter resort layout. The waterfront remains lively throughout September.
• Perissa and Perivolos: Best for swimming, beach clubs, and better-value accommodation. They become more relaxed late in the month while remaining fully operational.
• Pyrgos: Best for a traditional village atmosphere, excellent restaurants, and travelers exploring by car. Expect hills, steps, and fewer transport options than Fira.
• Akrotiri: Best for quiet hotels, caldera views, and lower prices than Oia or Imerovigli. A rental car is helpful, and nightlife is limited.

For a first visit or romantic trip, I would choose Imerovigli, Firostefani, or Fira. Choose Kamari, Perissa, or Perivolos when swimming and an easy beach routine matter more than staying on the caldera.

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Is September Good for Honeymoons, Families, Hiking, and Nightlife?

• Honeymoons: Excellent. September combines warm evenings and pool weather with a more relaxed atmosphere than August. Imerovigli is my favorite base for couples.
• Families: Very good, particularly during the first half when beach weather is most dependable. Kamari is easiest for younger children, while Fira is better for families relying on buses.
• Hiking: Very good, especially late in the month. Start the Fira-to-Oia trail early and carry water because most of the route has no shade.
• Nightlife: Strong in early September and still good later in the month. Fira remains the best base for bars and clubs.
• Boat Tours: Excellent. The sea is warm, and deck temperatures are generally more comfortable than in August.
• Wineries: Excellent for tastings and tours, though the grape harvest is usually earlier than many visitors expect.
• Photography: Excellent, with warm light and slightly easier access to popular locations late in the month. Sunrise remains the best time for empty Oia lanes.
• Sightseeing: Excellent. Lower afternoon temperatures make villages and archaeological sites much easier to explore than in peak summer.
• Beaches: Excellent. September has warmer water than June and generally more comfortable beach temperatures than August.

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Ferries and Island Hopping in September

September is one of the best months for Greek island hopping. The main Cyclades routes still have frequent service, the sea is warm, and travel becomes gradually less congested after the August peak.

Ferries connect Santorini with Athens, Mykonos, Naxos, Paros, Milos, and Crete. Exact departure times and frequencies change by date and year.

Book ahead when your itinerary is fixed, especially during early September and for popular high-speed ferries. Large conventional ferries usually provide a steadier ride in windy conditions, while high-speed ferries save time but can feel rougher.

Wind-related delays are possible. Do not arrive in Athens by ferry a few hours before an international flight. Spend your final night in Athens or leave a substantial buffer.

For help choosing between flying and sailing, read my guide to whether you should fly or take the ferry between Athens and Santorini.

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Getting Around Santorini in September

September traffic and bus crowds are lighter than in August, but transportation can still be frustrating, particularly during the first half of the month.

Fira is the best base for public transportation because the island’s buses operate through the central Fira bus station. A trip between Oia and Kamari, Perissa, or Akrotiri usually requires changing buses in Fira.

A rental car is useful for wineries, Ancient Akrotiri, Pyrgos, Megalochori, Emporio, remote hotels, and flexible beach trips. It is less necessary for travelers staying in Fira or Firostefani and using tours and pre-booked transfers.

Taxis remain limited. Pre-book airport and ferry-port transfers, especially for late arrivals, early departures, families, and anyone traveling with substantial luggage.

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What Surprises People About September

• Early September is still peak season: The first half can feel much closer to August than October.
• Late September still feels summery: Beaches, boat tours, outdoor dining, and swimming remain central to the trip.
• The sea can feel warmer than the hotel pool: Unheated caldera pools cool quickly when shaded or exposed to wind.
• Oia is not suddenly quiet: Sunset viewpoints remain crowded, especially on days with several cruise ships.
• The harvest may already be finished: Santorini’s grapes ripen early, and much of the harvest commonly occurs in August rather than September.
• A light layer is genuinely useful: Warm daytime weather does not prevent exposed cliffside restaurants from feeling breezy after sunset.

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September Mistakes to Avoid

• Assuming September is low season: Early September remains busy, expensive, and reservation-heavy.
• Waiting too long to book a specific hotel: The best caldera rooms, private pools, and honeymoon suites can sell out months ahead.
• Choosing an unheated pool without considering shade: Late-September pool temperatures vary greatly between hotels.
• Expecting to see the grape harvest: Santorini’s harvest often starts and finishes earlier than harvests elsewhere in Europe.
• Planning a same-day ferry and international flight: Delays are not constant, but the consequences of missing the flight are significant.
• Staying outside Fira without a transportation plan: Buses, taxis, transfers, and rental cars all require more thought when based in Akrotiri, Pyrgos, Megalochori, Kamari, or Perissa.
• Leaving the boat tour until your final day: Wind can still force a postponement or cancellation.
• Underestimating the sun: September is cooler than August but still hot enough for sunburn and dehydration.

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What to Pack for Santorini in September

Pack mainly for summer, with one additional layer for windy evenings and boat trips.

• Swimsuits and beach clothes: Swimming remains a major part of a September visit.
• Lightweight clothing: Shorts, linen shirts, dresses, and breathable fabrics work well during the day.
• Light sweater or jacket: Useful after sunset, particularly late in the month.
• Comfortable walking shoes: Santorini has steep lanes, uneven paving, cobblestones, and many stairs.
• Hat, sunglasses, and sunscreen: The September sun remains strong.
• Sandals or water shoes: Helpful for black-sand beaches and rocky swimming spots.
• Smart-casual dinner outfit: Santorini is relaxed, but many travelers dress up slightly for sunset dinners and winery visits.
• Small day bag: Useful for carrying water, sunscreen, and an extra layer on hikes and boat tours.

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September Compared with August and October

• August vs. September: Both are excellent for swimming, boat tours, nightlife, and beach days. September is slightly cooler and gradually less crowded, making it better for most travelers. August is better for school-holiday schedules and maximum nightlife energy.
• September vs. October: September has warmer water, more reliable beach weather, longer evenings, and stronger ferry and nightlife schedules. October is quieter and often cheaper but brings a greater chance of wind, rain, cloudy periods, and seasonal businesses beginning to close later in the month.

Choose early September when dependable beach weather is the priority. Choose late September when you want the best overall balance. Choose October when smaller crowds and lower prices matter more than guaranteed swimming and full summer energy.

For a complete seasonal comparison, see my guide to the best time to visit Santorini.

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Frequently Asked Questions

Is September a good time to visit Santorini?

Yes. September is one of the best months to visit Santorini, with warm weather, excellent swimming, full hotel and restaurant operations, frequent boat tours, and a gradually calmer atmosphere than August.

Is early September still crowded?

Yes. Early September remains high season and can feel similar to August in Oia, Fira, Athinios Port, and the most popular restaurants and tours.

Is late September still warm?

Usually, yes. Late September is generally warm enough for swimming, boat tours, beaches, outdoor dining, and sightseeing. Evenings can feel breezy, and short spells of cooler or cloudier weather become more possible.

Can you swim in Santorini in September?

Yes. September is one of the best swimming months because the sea remains around 24°C to 25°C (75°F to 77°F).

Are Santorini hotels cheaper in September?

Early-September prices remain high. Better value becomes more likely late in the month, but caldera-view hotels, luxury properties, and private-pool suites are still expensive.

How far ahead should I book a September hotel?

Book several months ahead when you want a specific caldera hotel, private pool, honeymoon suite, or family room. Late September offers more flexibility, but the best properties still fill early.

Where should I stay in September?

Stay in Imerovigli for romance and relative quiet, Firostefani for views and access to Fira, Fira for buses and nightlife, or Oia for iconic scenery. Choose Kamari, Perissa, or Perivolos for a beach-focused trip.

Do restaurants and beach clubs stay open in September?

Yes. Almost all hotels, restaurants, beach clubs, wineries, and tour companies remain open throughout September. Significant seasonal closures generally begin later in autumn.

Is September good for a honeymoon?

Yes. September is one of the best honeymoon months, particularly for couples who want warm swimming, sunset dinners, and caldera hotels without the worst August crowds.

Is September good for families?

Yes. The sea is warm, beach facilities are open, and temperatures are generally more manageable than in August. Kamari is the easiest beach base for families with young children.

Is September good for the Fira-to-Oia hike?

Yes, especially late in the month. Start early because the trail has little shade and can still become hot by late morning.

Is September good for boat tours?

Yes. September is one of the best months for a caldera cruise. Book ahead and schedule it early in your stay so there is time to reschedule if strong wind affects the trip.

Are ferries still running in September?

Yes. Main ferry routes operate frequently throughout September, though schedules vary by route and date. Book ahead when your itinerary depends on a specific departure.

Do September ferries sell out?

Popular departures can sell out, especially during early September and on high-speed ferries. Advance booking is sensible when your travel date is fixed.

Do I need a rental car in September?

Not if you stay in Fira or Firostefani and use buses, tours, and transfers. A rental car is useful for Akrotiri, Pyrgos, Megalochori, wineries, remote hotels, and flexible beach trips.

Is September better than August in Santorini?

For most travelers, yes. September has similarly warm water, slightly cooler weather, and gradually smaller crowds. August is better mainly for school-holiday travel and peak nightlife.

Is September better than October in Santorini?

September is better for swimming, beaches, boat tours, nightlife, and dependable summer weather. October is better for lower prices, lighter crowds, and cooler sightseeing conditions.