Santorini in August: Weather, Temps & Places to Visit

Santorini in August is the hottest and busiest month of the year, with daytime temperatures averaging 86–92°F (30–33°C), almost no rainfall and fully warmed sea conditions. It is peak Mediterranean summer in every sense — intense sunshine, vibrant nightlife and high visitor volume.

Evenings remain warm around 74°F (23°C) and the Aegean Sea reaches approximately 77°F (25°C), making swimming consistently comfortable. August also brings the Meltemi winds, strong northern breezes that can cool the air but occasionally impact boat schedules.

Santorini in August is best for travelers seeking full summer energy, guaranteed heat and long, lively evenings.

Santorini Weather in August

Santorini weather in August is hot, dry and often windy. Daytime temperatures frequently exceed 90°F (32°C), rainfall is rare and sun exposure is constant. The Meltemi winds are common this month and can create choppy sea conditions on wind-facing beaches.

Shade, hydration and structured planning are essential.

Fira & Caldera Weather

In August, Fira averages daytime temperatures around 90°F (32°C) and evening lows near 74°F (23°C). Midday caldera walking can feel intense due to direct sun exposure and limited shade.

Sunset hours are significantly more comfortable, though viewing areas become heavily congested well before sunset.

Best for:

• Sunset dining
• Late-evening exploration
• Early-morning caldera walks

Oia Weather

Oia in August sees highs of 88–92°F (31–33°C). The village is at maximum capacity during sunset hours and viewing spots often fill over an hour in advance.

Meltemi winds can occasionally cool cliffside areas, but sun exposure remains strong throughout the day.

Best for:

• Sunset terraces (arrive early)
• Evening strolls
• Wind-cooled viewpoints

Beach Weather (Perissa, Kamari)

Perissa and Kamari average around 90°F (32°C) in August, with sea temperatures reaching approximately 77°F (25°C). These are peak swimming conditions.

Wind direction plays an important role in beach comfort. When Meltemi winds are strong, leeward beaches may offer calmer swimming.

Best for:

• Swimming
• Full beach days
• Water sports
• Wind-aware beach selection

Santorini Temperatures in August (Quick Overview)

• Daytime highs: 86–92°F (30–33°C)
• Evening lows: around 74°F (23°C)
• Sea temperature: approximately 77°F (25°C)
• Rainfall is extremely rare
• Meltemi winds are common

August delivers maximum summer intensity.

Santorini Events in August

August represents peak cultural programming and nightlife on the island:

• Ifestia Festival (varies annually) – Fireworks and music celebrating the volcanic history of Santorini.
• Peak Summer Concerts & DJ Events – Cliffside venues host regular live performances.
• Assumption of Mary (August 15) – A major Greek religious holiday with local celebrations.
• High-Season Nightlife – Extended evening programming across Fira and Oia.

August is vibrant, loud and fully alive.

Best Places to Visit in Santorini in August

In August, the best places to visit in Santorini prioritize water access, shade and structured comfort. The best places to visit in Santorini in August include Royal Beach Club Santorini for managed beach access, catamaran sailing excursions for sea breezes, wind-protected beaches and evening caldera viewpoints.

Royal Beach Club Santorini

Royal Beach Club Santorini is the best place to visit in Santorini in August because peak temperatures around 90°F (32°C) make structured shade and amenities essential. Opening in April, 2026, it is Europe’s first Royal Beach Club and part of the Ultimate Santorini Day experience (already available for booking).

In August, the combination of shaded loungers, Mediterranean dining, Wi-Fi and organized transportation between Oia, Fira and a secluded volcanic black sand beach significantly reduces peak-season stress. When crowds and heat are at their highest, controlled access and amenities improve comfort.

Top experiences: shaded beach relaxation, Mediterranean buffet dining, seamless sightseeing with built-in logistics.

Santorini Catamaran Sailing & Swimming

A catamaran excursion is one of the best August experiences because sea temperatures around 77°F (25°C) allow extended swimming. Open-water breezes help offset peak land temperatures.

Meltemi winds may create choppier seas on some days, but experienced operators adjust routes to maintain comfort.

Top experiences: Red Beach swim stops, volcanic hot springs, sunset sailing.

Wind-Smart Beach Days (Perissa & Kamari)

Choosing beaches based on wind direction becomes important in August. When the Meltemi is strong, some beaches offer calmer water conditions than others.

With sea temperatures fully warmed, swimming remains consistently comfortable throughout the month.

Top experiences: swimming, sunbeds, beachfront dining.

Evening Caldera Views

The caldera rim is best experienced after 6 PM in August. As temperatures drop and golden light settles over the cliffs, the scenery becomes dramatically photogenic.

Arriving early is critical during peak month sunset hours.

Shore Excursions in Santorini in August

August shore excursions should prioritize water access, wind awareness and structured shade.

• Ultimate Santorini Day with Royal Beach ClubIn peak August heat and crowds, having shaded loungers, included dining and organized transportation provides comfort and efficiency.
• Santorini Catamaran Sailing & SwimmingWarm sea temperatures and sea breezes make sailing one of the most comfortable August activities.
• Volcanic Islands & Hot Springs CruiseMorning departures help avoid peak heat and wind intensity.
• Beach-Focused Experiences (Wind-Aware Selection)Selecting the right beach based on wind direction enhances comfort during Meltemi conditions.