Santorini weather by month & the best time to visit
🇬🇷 Greece · beach resort · Mediterranean climate
The best time to visit Santorini is June — its sunniest month (Sunshine Score 96/100), with July and August close behind. Santorini averages about 3,012 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 5 mm of rain in June.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 3,012
- Sunniest month
- June
- Peak score
- 96/100
- Rain / year
- 488 mm
- Midday UV at peak
- 10 (very high)
- Sea at warmest
- 26°C / 79°F
- Elevation
- 28 m
When is the best time to visit Santorini?
For sunshine, the best time to visit Santorini is June, then July and August. The dullest month is January (40/100, 96 mm of rain). The full month-by-month picture is in the table below.
How sunny is Santorini?
Santorini is one of the sunniest places on Earth: about 3,012 hours of sunshine a year. 56 Sunshine Score points separate June (96) from January (40), so the month you pick matters. It ranks #14 of 40 destinations in Greece for annual sunshine, above the national median of 2,896 hours. Rain has a clear season: the wettest stretch, around January, carries about 54% of the annual 488 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 40 | 14° / 57°F | 13° / 55°F | 96 mm | 2 | 18° / 64°F |
| February | 48 | 15° / 59°F | 13° / 55°F | 81 mm | 3 | 17° / 63°F |
| March | 59 | 16° / 61°F | 14° / 57°F | 44 mm | 4 | 17° / 63°F |
| April | 69 | 17° / 63°F | 15° / 59°F | 26 mm | 6 | 18° / 64°F |
| May | 93 | 21° / 70°F | 18° / 64°F | 19 mm | 8 | 19° / 66°F |
| June | 96 | 25° / 77°F | 22° / 72°F | 5 mm | 9 | 23° / 73°F |
| July | 96 | 27° / 81°F | 24° / 75°F | 2 mm | 10 | 25° / 77°F |
| August | 96 | 27° / 81°F | 24° / 75°F | 2 mm | 9 | 26° / 79°F |
| September | 94 | 25° / 77°F | 23° / 73°F | 18 mm | 7 | 25° / 77°F |
| October | 89 | 22° / 72°F | 20° / 68°F | 44 mm | 5 | 23° / 73°F |
| November | 78 | 19° / 66°F | 17° / 63°F | 64 mm | 3 | 21° / 70°F |
| December | 54 | 16° / 61°F | 14° / 57°F | 87 mm | 2 | 19° / 66°F |
Sea temperature in Santorini by month
The sea off Santorini is warmest in August at around 26°C / 79°F, and coolest in February at 17°C / 63°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Santorini on the interactive sunshine globe →
Nearby places for sunshine
- Mykonos Greece · 116 km · best in Jul · 2,897 h sun/yr
- Heraklion Greece · 121 km · best in Jul · 2,929 h sun/yr
- Kos Greece · 150 km · best in Jul · 3,218 h sun/yr
- Chaniá Greece · 154 km · best in Jul · 2,895 h sun/yr
- Karpathos Greece · 185 km · best in Jul · 3,177 h sun/yr
- Samos Greece · 192 km · best in Jul · 3,081 h sun/yr
Nearest destinations
- Paros Greece · 76 km · 2,895 h sun/yr · best in Jul
- Naxos Greece · 76 km · 2,896 h sun/yr · best in Jul
- Astypalaia Greece · 83 km · 3,100 h sun/yr · best in Jun
- Milos Greece · 95 km · 3,031 h sun/yr · best in Jul
Head-to-head
How Santorini compares month by month: Santorini vs Heraklion · Santorini vs Chaniá · Santorini vs Kos · Santorini vs Mykonos · all comparisons
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