Monthly weather forecast and climate
Santorini, Greece

The white houses on the Island of lovers overlooking clear blue waters, Santorini, Greece
The white houses on the Island of lovers overlooking clear blue waters, Santorini, Greece

The best time to visit Santorini

The best months for a swim in Santorini, Greece, are July and August, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

Weather in January

January, like December, is another mild winter month in Santorini, Greece, with average temperature ranging between max 14°C (57.2°F) and min 9°C (48.2°F). January and February, with an average high-temperature of 14°C (57.2°F), are the coldest months. Weather in January »

Weather in February

February, the last month of the winter, in Santorini, is another mild month, with average temperature fluctuating between 9°C (48.2°F) and 14°C (57.2°F). January and February, with an average high-temperature of 14°C (57.2°F), are the coldest months. Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Santorini, Greece, with average temperature varying between 10°C (50°F) and 16°C (60.8°F). In March, the average high-temperature is essentially the same as in February - an enjoyable 16°C (60.8°F). Weather in March »

Weather in April

April, the same as March, is another enjoyable spring month in Santorini, Greece, with average temperature ranging between max 19°C (66.2°F) and min 12°C (53.6°F). In Santorini, the average high-temperature marginally rises, from 16°C (60.8°F) in March, to a still comfortable 19°C (66.2°F). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Santorini, Greece, with average temperature varying between 15°C (59°F) and 22°C (71.6°F). In Santorini, the average high-temperature in May marginally rises, from a comfortable 19°C (66.2°F) in April, to a pleasant 22°C (71.6°F). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Santorini, Greece, with average temperature ranging between max 26°C (78.8°F) and min 19°C (66.2°F). In Santorini, the average high-temperature slightly increases, from a pleasant 22°C (71.6°F) in May, to a moderately hot 26°C (78.8°F). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Santorini, Greece, with temperature in the range of an average high of 28°C (82.4°F) and an average low of 22°C (71.6°F). The ideal sea water temperature of 25.3°C (77.5°F) and only 1 rainfall days, with 1mm (0.04") of accumulated rainfall, makes July the best time for swimming and other water activities. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Santorini, Greece, with average temperature ranging between max 27°C (80.6°F) and min 22°C (71.6°F). The perfect water temperature of 25.7°C (78.3°F) with 1mm (0.04") of accumulated rainfall and only 1 rainfall days, makes August a great period for swimming and other water activities. Weather in August »

Weather in September

September, the first month of the autumn, in Santorini, is still a warm month, with average temperature fluctuating between 20°C (68°F) and 25°C (77°F). In September, the average high-temperature is almost the same as in August - a still warm 25°C (77°F). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Santorini, Greece, with average temperature varying between 22°C (71.6°F) and 16°C (60.8°F). In Santorini, the average high-temperature in October marginally drops, from a warm 25°C (77°F) in September, to an agreeable 22°C (71.6°F). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Santorini, Greece, with average temperature varying between 13°C (55.4°F) and 19°C (66.2°F). In November, the average high-temperature marginally drops, from an agreeable 22°C (71.6°F) in October, to a comfortable 19°C (66.2°F). Weather in November »

Weather in December

December, the first month of the winter, in Santorini, is still a comfortable month, with average temperature varying between 11°C (51.8°F) and 16°C (60.8°F). In December, the average high-temperature marginally drops, from a comfortable 19°C (66.2°F) in November, to a still enjoyable 16°C (60.8°F). Weather in December »
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FAQ

What are the coldest months in Santorini?

January and February, with an average high-temperature of 14°C (57.2°F), are the coldest months in Santorini.

How much does it rain in Santorini?

Throughout the year, there are 65 rainfall days, and 554mm (21.81") of precipitation is accumulated.

What is the rainiest month in Santorini?

January is the month with the most rainfall in Santorini, Greece. Rain falls for 11 days and accumulates 114mm (4.49") of precipitation.

What is the month with the least sunshine in Santorini?

Months with the least sunshine in Santorini are January and December, with an average of 4h of sunshine.

What are the months with the lowest UV index in Santorini?

Months with the lowest UV index in Santorini are January and December, with an average maximum UV index of 2.

What is the month with the coldest sea water in Santorini?

The month with the coldest seawater in Santorini, Greece, is February, with an average sea temperature of 16.5°C (61.7°F).

When are the longest days in Santorini?

With an average of 14.6h of daylight, June has the longest days of the year in Santorini.

What is the month with the most sunshine in Santorini?

Months with the most sunshine in Santorini, Greece, are June and July, with an average of 13h of sunshine.

What is the month with the highest UV index in Santorini?

Months with the highest UV index in Santorini are June and July, with an average maximum UV index of 10.

What is the warmest month in Santorini?

The warmest month is July, with an average high-temperature of 28°C (82.4°F) and an average low-temperature of 22°C (71.6°F).

What is the driest month in Santorini?

July and August are months with the least rain in Santorini when the rain falls for 1 days and typically aggregates up to 1mm (0.04") of rain.

When is the sea warmest in Santorini?

The month with the warmest seawater in Santorini, Greece, is August, with an average sea temperature of 25.7°C (78.3°F).

What is the month with the shortest days in Santorini?

December has the shortest days of the year in Santorini, Greece, with an average of 9.7h of daylight.

Average rainfall
Santorini, Greece

Average rainfall - Santorini, Greece

The wettest month (with the highest rainfall) is January (114mm).
The driest months (with the least rainfall) are July and August (1mm).

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Average rainfall days
Santorini, Greece

Average rainfall days - Santorini, Greece

The month with the highest number of rainy days is December (12 days).
Months with the least rainy days are June, July, August and September (1 days).

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Average sea temperature
Santorini, Greece

Average sea temperature - Santorini, Greece

The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (16.5°C).

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Average daylight / Average sunshine
Santorini, Greece

Average daylight / Average sunshine - Santorini, Greece

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

Months with the most sunshine are June and July (Average sunshine: 13h).
Months with the least sunshine are January and December (Average sunshine: 4).

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