Climate at a glance · Santorini
Annual mean20°day and night
Precipitation244 mma year
Warmest monthJulyavg high 30°
Coldest monthFebruaryavg low 11°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
244 mm a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 16° | 15° | 16° | 20° | 23° | 28° | 30° | 30° | 27° | 23° | 20° | 17° |
| Avg low | 12° | 11° | 12° | 15° | 18° | 22° | 25° | 25° | 23° | 19° | 17° | 14° |
| Precip, mm | 42 | 35 | 33 | 13 | 16 | 5 | 1 | 3 | 5 | 10 | 21 | 60 |
| Wet days | 9 | 7 | 7 | 5 | 4 | 1 | 0 | 1 | 1 | 2 | 4 | 9 |
| Sunshine | 7.9 h | 8.8 h | 10 h | 11.3 h | 12.4 h | 13.8 h | 13.5 h | 12.9 h | 11.8 h | 10.1 h | 9 h | 8.2 h |
| Humidity | 67% | 65% | 65% | 66% | 66% | 62% | 59% | 64% | 63% | 66% | 69% | 70% |
| Sea temperature | 18° | 17° | 17° | 18° | 19° | 22° | 25° | 26° | 25° | 22° | 21° | 20° |
| Daylight | 10 h 00 | 10 h 52 | 11 h 59 | 13 h 08 | 14 h 07 | 14 h 36 | 14 h 21 | 13 h 30 | 12 h 24 | 11 h 15 | 10 h 15 | 9 h 44 |
| UV index (clear sky) | 4 | 5 | 7 | 10 | 11 | 11 | 11 | 10 | 8 | 6 | 4 | 3 |
5-year averages (2021–2025) · Open-Meteo historical weather (ERA5)
36.3932°N, 25.4615°E