Greece · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Santorini are April, May and October, when daytime temperatures are agreeable and rainfall is relatively low.
Santorini sees its warmest weather in August, when daytime highs average around 30°C, and its coolest in January (around 14°C).
Annual precipitation totals roughly 271mm — December is typically the wettest month (~55mm) and July the driest (~0mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 61 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 14° / 10°C | 53mm | 👍 Good |
| February | 15° / 10°C | 41mm | 👍 Good |
| March | 16° / 11°C | 45mm | 👍 Good |
| April | 20° / 14°C | 12mm | 🌟 Great |
| May | 23° / 17°C | 8mm | 🌟 Great |
| June | 28° / 21°C | 4mm | 🌟 Great |
| July | 30° / 23°C | 0mm | 🌟 Great |
| August | 30° / 24°C | 3mm | 🌟 Great |
| September | 27° / 21°C | 3mm | 🌟 Great |
| October | 23° / 18°C | 15mm | 🌟 Great |
| November | 19° / 15°C | 34mm | 🌟 Great |
| December | 16° / 12°C | 55mm | 👍 Good |
January in Santorini is mild, with average daytime highs around 14°C (58°F) and nighttime lows near 10°C (50°F). Expect roughly 53mm of precipitation, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings
February in Santorini is mild, with average daytime highs around 15°C (58°F) and nighttime lows near 10°C (51°F). Expect roughly 41mm of precipitation, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings
March in Santorini is mild, with average daytime highs around 16°C (61°F) and nighttime lows near 11°C (52°F). Expect roughly 45mm of precipitation, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings
April in Santorini is pleasantly warm, with average daytime highs around 20°C (67°F) and nighttime lows near 14°C (56°F). Expect roughly 12mm of precipitation, and rain is rare.
🎒 What to pack — light layers · comfortable walking shoes
May in Santorini is pleasantly warm, with average daytime highs around 23°C (74°F) and nighttime lows near 17°C (62°F). Expect roughly 8mm of precipitation, and rain is rare.
🎒 What to pack — light layers · comfortable walking shoes
June in Santorini is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 21°C (70°F). Expect roughly 4mm of precipitation, and rain is rare.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
July in Santorini is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 23°C (74°F). Expect roughly 0mm of precipitation, and rain is rare.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
August in Santorini is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 24°C (74°F). Expect roughly 3mm of precipitation, and rain is rare.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
September in Santorini is warm, with average daytime highs around 27°C (81°F) and nighttime lows near 21°C (70°F). Expect roughly 3mm of precipitation, and rain is rare.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
October in Santorini is pleasantly warm, with average daytime highs around 23°C (73°F) and nighttime lows near 18°C (64°F). Expect roughly 15mm of precipitation, and rain is rare.
🎒 What to pack — light layers · comfortable walking shoes
November in Santorini is pleasantly warm, with average daytime highs around 19°C (67°F) and nighttime lows near 15°C (58°F). Expect roughly 34mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
December in Santorini is mild, with average daytime highs around 16°C (60°F) and nighttime lows near 12°C (53°F). Expect roughly 55mm of precipitation, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings