Greece › Santorini › August Weather
Updated: November 26, 2025
By Santorini Dave
See Also
• Where to Stay in Santorini
• Best Hotels in Santorini
• Best Restaurants in Santorini
• Best Activities in Santorini
• Best Wine Tours in Santorini
• Best Boat Tours in Santorini
• Best Beaches in Santorini
Oia, Santorini during an August sunset.
August is the peak of the peak. Along with July, it is the hottest, busiest, and most expensive month of the year. The energy is incredible, but it is intense. If you can wait until September (my favorite month to visit), you will find the experience much more relaxing and affordable.
Overview:
• Weather: Expect the full force of the Aegean summer. The weather is consistently hot, and the sun is relentless.
• Temperature: Daytime temperatures are at their peak, regularly climbing to 30-35°C (86-95°F) and sometimes higher. Nights offer little relief, remaining warm and balmy, usually in the mid-20s (around 75°F).
• The Meltemi Winds: These strong, dry northern winds are a defining feature of August. The winds can be severe enough to cancel high-speed ferries and small boat tours.
• Sunshine & Swimming: You are guaranteed wall-to-wall sunshine with virtually no chance of rain. The sea is at its absolute warmest, averaging a bath-like 25°C (77°F), making it perfect for swimming and all water activities. Hot Sand Warning: The black volcanic sand absorbs the heat. It is impossible to walk barefoot for anything more than a few feet. Water shoes or sandals are essential.
• Activities: Every tour, shop, restaurant, and beach bar is open and operating at maximum capacity.
• Boat Tours: Caldera cruises remain one of the best things to do in August, offering an escape from the crowds on land and a refreshing sea breeze. This is close to a must-do.
• Winery Tours: All wineries are open, but visiting during the midday heat can be intense. Opt for tours in the late afternoon to enjoy the views and wine in more comfortable temperatures.
Breakfast in Firostefani on an August morning.
A boat tour of the caldera is a non-negotiable must in August.
• Nightlife: Reaches a fever pitch in August, the busiest and most intense month of the year. Fira is overflowing with people, and the dance clubs are at maximum capacity with world-class DJs. Expect a loud, celebratory, and frantic party scene that goes all night long. That said, it’s easy to avoid if you’re not interested.
• Beaches: The sea is at its absolute warmest in August, feeling like bathwater. The beaches are at their most crowded for the year, and the sun is intensely hot, making an umbrella and sandals for the hot black sand essential. This is the month for the most vibrant and high-energy beach scene.
• Fira-Oia Hike: This is the most difficult month to do the hike due to the heat. Start early (8 AM is my recommendation) and carry plenty of water. The midday sun is intense and there’s very little shade to be found.
The swim spot below Oia is idyllic in August.
A August afternoon by the pool in Imerovigli.
• The August 15th Holiday (Assumption of Mary): This is one of the biggest religious holidays in Greece. The week surrounding August 15th is the peak travel time for Greeks. Ferries will be sold out weeks in advance. Some shops may close for the day, but restaurants and tourist zones stay open. Expect festive fireworks and celebrations in the villages.
• Crowds: The island is at maximum capacity. The narrow streets of Oia and Fira will be thronged with people, especially around sunset, which can feel overwhelming. Every popular beach, restaurant, and viewpoint will be busy. A desire to embrace the bustling energy is essential for enjoying August.
• Prices: August sees the most expensive rates for everything. Flights and accommodation are at their absolute premium. Booking 6 to 12 months in advance is not just recommended; it’s practically mandatory if you want any choice in lodging, particularly for rooms with a caldera view.
• For Couples: August is for couples who thrive on energy and want to be in the center of the action. The nightlife and beach club scene are at their most vibrant. If you want romance, you must book a hotel with a private pool or terrace. Without it, you will have no escape from the crowds.
• For Families: While families can visit in August, it requires significant planning and a high tolerance for heat and crowds. Consider staying at the family-friendly beach resorts of Kamari or Perissa. These areas offer more space and direct beach access, and the layout is easier to manage with children than the cliffside villages. Structure your days to avoid the midday sun. Enjoy the beach and pool in the morning and late afternoon. Plan indoor activities or rest during the hottest part of the day. Pre-book all tours, transfers, and popular Santorini restaurants.
About Santorini Dave