Santorini weather in April
Averages for 1 place in Santorini in April, from 30 years of weather data.
Holiday weather in April
Poor
Best time to visit: July – September
Places in Santorini in April
Sorted by holiday weather score. Each place links to its own page for April.
| Place | Score | Day | Night | Sea | Sun | Rain days |
|---|---|---|---|---|---|---|
| Fira | 38 | 16° | 13° | 17° | 9 h | 3 |
April compared
How the weather changes from March to May. Tap a month to open it.
Santorini in April: quick answers
Is it warm in Santorini in April?
It is mild. Daytime highs average 16 °C (16 °C by place) and nights 13 °C.
Can you swim in Santorini in April?
Only if you like it fresh: the sea is 17 °C, 17 °C on average.
Does it rain much in Santorini in April?
Rarely: 3 rainy days on average. Plus 9 hours of sunshine a day.
Is April a good time to visit Santorini?
April scores 38 out of 100 (Poor). The best time to visit is July – September.
Santorini month by month
Santorini: weather by monthWhere to go in AprilSea temperature in April
More islands & regions
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Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)