Santorini, GREECE and its best beaches
Climate - Temperatures and rainfall - Mediterranean Sea
Santorini: Temperatures during the day, at night, rain and bathing conditions
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Greece : climate and when to go to Santorini
Temperate climate, mild, wet winters, hot and dry summers. The climate in Greece is typical of the Mediterranean climate: mild and rainy winter, relatively warm and dry summer, and generally prolonged periods of sunshine for most of the year. A wide variety of climate sub-types, also in the Mediterranean climate approach, is present in several regions of Greece. This is due to the influence of topography (large mountain chains, along the central part), and to the air masses coming from the moisture sources of the central Mediterranean Sea.
January Avoid |
February Avoid |
March Avoid |
April Avoid |
May Avoid |
June Pecfect |
July Pecfect |
August Pecfect |
September Pecfect |
October Avoid |
November Avoid |
December Avoid |
When to go? The hottest month for the beach, lazing around and swimming is August. Check the precipitations because showers are possible but the sun returns quickly, otherwise other periods are possible. The coolest month is January, if you can not stand the heat too much. The driest month of the year is July, if you do not like the rain at all.
Click on
Athens -
Santorini to display its climate.
Graphs and temperature curves with average precipitation over the year


Precipitation, rainfall, cyclone: GREECE

Temperatures of bathing water around Santorini

Landmarks







No cyclone risk for this country


Mediterranean Sea
Climate April 2025
Santorini sunshine in summer and winter



The sun at its zenith, that means well perpendicular to the surface of the Earth, sending 100% of radiation and heat. Santorini receives in winter (january), 50% of sun power and 97% during summer time (july).
The average temperature and sunshine deviations between summer and winter are 47%. This large gap means that the temperature at sea varies and that it can be cooler during the winter. A sweater can be nice in the early morning or evening, the fell night in cooler season.

Average temperatures and rainfall for a stay in April
On the left, the averages observed every month of April on the Greece beaches. The trends for next month are, slightly warmer daytime temperatures, a bathing water in Mediterranean Sea which takes a few degrees, less rainfall with warmer nights.
Sunset and sunrise times for GREECE
Local time : April 2025, Saturday 19, 01:27 AM
Sunrise time : 05:41 am, point A
Sunset time : 6:52 pm, point B
Duration of daylight : 13:11 / 24:00
Jet lag : GMT+2

The average monthly UV index of GREECE
What is the period of mosquitoes virulence over the year?
Weather forecast for Santorini
Here are the current 5-day forecasts for Messaria / Santorini. Temperatures are spaced 3 hours apart for each day. The summary of the state of the sky gives the trend of the week. The sea temperature at is a monthly average. In lagoons or seashores where the bathing water is shallow, you can add some degrees.
Sunday
April 20, 2025
8 am
62°F
17°C

Few clouds
Humidity 72%
Sea 61°F/16°C
Sunday
April 20, 2025
11 am
63.1°F
18°C

Scattered clouds
Humidity 66%
Sea 61°F/16°C
Sunday
April 20, 2025
2 pm
64.4°F
19°C

Scattered clouds
Humidity 60%
Sea 61°F/16°C
Sunday
April 20, 2025
5 pm
64.7°F
19°C

Overcast clouds
Humidity 66%
Sea 61°F/16°C
Sunday
April 20, 2025
8 pm
63.7°F
18°C

Broken clouds
Humidity 70%
Sea 61°F/16°C
Sunday
April 20, 2025
11 pm
63.2°F
18°C

Broken clouds
Humidity 72%
Sea 61°F/16°C
Monday
April 21, 2025
8 am
63.1°F
18°C

Broken clouds
Humidity 71%
Sea 61°F/16°C
Monday
April 21, 2025
11 am
62.8°F
18°C

Overcast clouds
Humidity 80%
Sea 61°F/16°C
Monday
April 21, 2025
2 pm
63.8°F
18°C

Overcast clouds
Humidity 78%
Sea 61°F/16°C
Monday
April 21, 2025
5 pm
64.1°F
18°C

Light rain
Humidity 78%
Sea 61°F/16°C
Monday
April 21, 2025
8 pm
64°F
18°C

Overcast clouds
Humidity 75%
Sea 61°F/16°C
Monday
April 21, 2025
11 pm
63.6°F
18°C

Broken clouds
Humidity 76%
Sea 61°F/16°C
Tuesday
April 22, 2025
8 am
63.2°F
18°C

Scattered clouds
Humidity 80%
Sea 61°F/16°C
Tuesday
April 22, 2025
11 am
63.5°F
18°C

Overcast clouds
Humidity 79%
Sea 61°F/16°C
Tuesday
April 22, 2025
2 pm
63.8°F
18°C

Overcast clouds
Humidity 83%
Sea 61°F/16°C
Tuesday
April 22, 2025
5 pm
63.4°F
18°C

Scattered clouds
Humidity 83%
Sea 61°F/16°C
Tuesday
April 22, 2025
8 pm
62.5°F
17°C

Few clouds
Humidity 83%
Sea 61°F/16°C
Tuesday
April 22, 2025
11 pm
62.1°F
17°C

Clear sky
Humidity 82%
Sea 61°F/16°C
Wednesday
April 23, 2025
8 am
62.2°F
17°C

Few clouds
Humidity 81%
Sea 61°F/16°C
Wednesday
April 23, 2025
11 am
62.8°F
18°C

Broken clouds
Humidity 78%
Sea 61°F/16°C
Wednesday
April 23, 2025
2 pm
63°F
18°C

Broken clouds
Humidity 76%
Sea 61°F/16°C
Wednesday
April 23, 2025
5 pm
63.1°F
18°C

Clear sky
Humidity 70%
Sea 61°F/16°C
Wednesday
April 23, 2025
8 pm
62.4°F
17°C

Scattered clouds
Humidity 75%
Sea 61°F/16°C
Wednesday
April 23, 2025
11 pm
62.3°F
17°C

Overcast clouds
Humidity 81%
Sea 61°F/16°C
Weather uncertainties 2025 to go to Santorini ?


When traveling in the tropics as a seaside, rain is not welcome. If you see this indicator, with possible storms, that does not mean that it will rain all day long. When we observe the local rainfall, it is either really zero or very weak. Meteorologists prefer to be pessimistic. So observe below, the skies photographed during a week announced stormy in Asia. It did not rain once. I invite you to integrate this parameter before going to Santorini for a good trip to the sun!



