Brittany, France: Annual Weather Averages
August is the hottest month in Brittany with an average temperature of 18°C (64°F) and the coldest is January at 7.5°C (46°F) with the most daily sunshine hours at 7 in July. The wettest month is December with an average of 62mm of rain. The best month to swim in the sea is in August when the average sea temperature is 19°C (66°F).
Average Temperature: Brittany
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 8 | 8 | 9 | 11 | 14 | 16 | 18 | 18 | 16 | 13 | 10 | 8 |
| °F | 46 | 46 | 48 | 51 | 57 | 60 | 64 | 64 | 61 | 55 | 49 | 46 |
Average High/Low Temperature: Brittany
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 10 | 10 | 12 | 14 | 18 | 19 | 21 | 22 | 20 | 16 | 12 | 10 |
| Low °C | 5 | 5 | 6 | 7 | 10 | 12 | 14 | 14 | 12 | 10 | 7 | 5 |
| High °F | 50 | 50 | 54 | 57 | 64 | 66 | 70 | 72 | 68 | 61 | 54 | 50 |
| Low °F | 41 | 41 | 43 | 45 | 50 | 54 | 57 | 57 | 54 | 50 | 45 | 41 |
Average Rainfall: Brittany
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 54 | 58 | 43 | 42 | 44 | 33 | 38 | 26 | 24 | 57 | 51 | 62 |
| Days | 17 | 14 | 15 | 14 | 12 | 11 | 12 | 11 | 10 | 16 | 17 | 16 |
Average Daily Sunshine Hours: Brittany
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 2 | 2 | 3 | 4 | 5 | 6 | 7 | 6 | 5 | 4 | 3 | 2 |
Average Sea Temperature: Brittany
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 12 | 12 | 12 | 14 | 14 | 16 | 18 | 19 | 18 | 17 | 15 | 13 |
| °F | 54 | 54 | 54 | 57 | 57 | 61 | 64 | 66 | 64 | 63 | 59 | 55 |
