Santorini weather in August

August is an excellent time to visit Santorini if you enjoy hot weather.

You can expect hot, sunny days with little or no rain. Daytime temperatures get much warmer climbing to an average high of 29°C (85°F).

How hot is it in Santorini in August?
Daytime temperatures usually reach 29°C (84°F) in Santorini in August with moderate to high heat and humidity, falling to 23°C (73°F) at night.

However, on the warmest days of the month, which normally occur at the end of the month, the temperature may reach a high of around 33°C (91°F).

How sunny is it in Santorini in August?
There are normally 11.5 hours of sunshine each day in Santorini in August – that's around 85% of daylight hours.

Sunrise & sunset in August?
Sunrise is around 6:30am with sunset around 8pm.

How warm is the sea around Santorini in August?
The average sea temperature around Santorini peaks in August at 24°C (75°F), which is warm enough for swimming.

Does it rain in Santorini in August?
There is less than 1mm (‹1in) of rainfall in Santorini in August.

How windy is it in Santorini in August?
August sees an average wind speed of 23km/h (12 knots; 14 mph). The predominant wind direction is from the north.

What to do in Santorini in August?
Weather conditions in August are good for sunbathing, swimming, snorkelling and scuba diving.

Away from the beach, this is also a good time to explore the island on foot, bicycle or motorcycle.

Don't miss the preserved ruins of classical antiquity at Ancient Thera and the nearby Minoan Bronze Age settlement of Akrotiri or the narrow picture-perfect alleyways of Firá and Oía.

August is peak season in Santorini, with a commensurate rise in hotel rates and more crowded entertainment venues.

Local holidays?
Assumption Day – 15th August.

Santorini weather in August

Temperature icon High Temp: 29°C (84°F)
temperature icon Low Temp: 23°C (73°F)
sun icon Sunshine: 11.5 hours per day
Moderately hot icon
Daylight: 13.5 hours per day
wind icon Wind speed: 23 km/h (12 knots; 14 mph)
umbrella icon Wet Days: Less than 1 day with some rain
rain cloud Rainfall: Less than 1mm (‹1in) per month
Modderate heat icon Comfort Level: Moderate to heat & humidity
Moderately hot icon
UV Index: Very High
swimming icon Sea Temp: 24°C (75°F)
Santorini, Greece

Best time to visit Santorini

The best time to visit Santorini is during mid-season (May, June, September and October) when the weather is warm and the island is less crowded.

The peak season of July and August is beautiful with hot, sunny weather but comes at a cost of sky-rocketing prices in hotels and restaurants.

Santorini weather overview

Santorini weather by month

Note: Weather data for Santorini is based on meteorological statistics gathered for the 30-year period 1991 to 2020, and is sourced from the Hellenic National Meteorological Service (HNMS) at the closest weather station, Santorini (Thira) International Airport (JTR), located about 5km (3mi) southeast of the capital, Fira. Additional climate data is sourced from the World Meteorological Organization (WMO).

Advice on the best time to visit a particular destination is based on average local weather statistics, when the weather conditions are generally better than at other times of the year. We consider high and low temperatures, risk of rain (and thunderstorms, etc.), amount of sunshine and sea temperature. For general outdoor activities we favour clear, rainless days with a temperature range between 18°C (64°F) and 27°C (80°F); and for hot-weather activities we favour clear, rainless days with a temperature range between 24°C (75°F) and 32°C (89°F). Often, the best times to visit correspond to high season and therefore involve higher prices.

Latest update: Santorini weather in August: 7 October, 2023

Disclaimer: The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data and conditions at any given location and time are unpredictable and variable. We assume no responsibility and can not be held legally responsible for any decisions made on the basis of the information presented on this site.