Santorini, Greece: Annual Weather Averages
July is the hottest month in Santorini with an average temperature of 26°C (79°F) and the coldest is January at 12°C (54°F) with the most daily sunshine hours at 14 in July. The wettest month is December with an average of 74.5mm of rain. The best month to swim in the sea is in August when the average sea temperature is 25°C (77°F).
Average Temperature: Santorini
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 12 | 12 | 14 | 16 | 20 | 24 | 26 | 26 | 24 | 21 | 17 | 13 |
| °F | 54 | 54 | 56 | 60 | 68 | 75 | 79 | 79 | 74 | 69 | 62 | 55 |
Average High/Low Temperature: Santorini
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 14 | 14 | 16 | 18 | 23 | 27 | 29 | 29 | 26 | 23 | 19 | 15 |
| Low °C | 10 | 10 | 11 | 13 | 17 | 21 | 23 | 23 | 21 | 18 | 14 | 11 |
| High °F | 57 | 57 | 61 | 64 | 73 | 81 | 84 | 84 | 79 | 73 | 66 | 59 |
| Low °F | 50 | 50 | 52 | 55 | 63 | 70 | 73 | 73 | 70 | 64 | 57 | 52 |
Average Day/Night Temperature: Santorini
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 13 | 14 | 15 | 17 | 21 | 25 | 28 | 27 | 25 | 21 | 18 | 14 |
| Night °C | 12 | 13 | 14 | 16 | 20 | 24 | 26 | 26 | 24 | 20 | 17 | 13 |
| Day °F | 56 | 57 | 59 | 63 | 70 | 78 | 82 | 81 | 77 | 70 | 65 | 58 |
| Night °F | 54 | 55 | 57 | 60 | 67 | 75 | 79 | 79 | 75 | 68 | 62 | 56 |
Average Rainfall: Santorini
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 71 | 43 | 40 | 16 | 11 | 0 | 7 | 0 | 11 | 38 | 59 | 75 |
| Days | 10 | 9 | 7 | 4 | 3 | 0 | 1 | 0 | 2 | 4 | 8 | 11 |
Average Daily Sunshine Hours: Santorini
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 7 | 7 | 9 | 11 | 12 | 13 | 14 | 13 | 11 | 9 | 8 | 6 |
Average Sea Temperature: Santorini
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 16 | 16 | 16 | 17 | 19 | 22 | 24 | 25 | 24 | 23 | 20 | 18 |
| °F | 61 | 61 | 61 | 63 | 66 | 72 | 75 | 77 | 75 | 73 | 68 | 64 |
