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August is the hottest month in Tortola with an average temperature of 28°C (82.4°F) and the coldest is January at 25°C (77°F) with the most daily sunshine hours at 9 in August. The wettest month is October with an average of 161mm of rain. The best month to swim in the sea is in September when the average sea temperature is 29°C (84.2°F)
FusionCharts
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 27 | 26 | 25 |
| °F | 76 | 76 | 76 | 78 | 79 | 81 | 81 | 82 | 82 | 81 | 79 | 77 |
FusionCharts
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 30 | 29 | 28 |
| High °F | 82 | 82 | 82 | 84 | 84 | 86 | 86 | 88 | 88 | 86 | 84 | 82 |
| Low °C | 21 | 21 | 21 | 22 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 22 |
| Low °F | 70 | 70 | 70 | 72 | 73 | 75 | 75 | 75 | 75 | 75 | 73 | 72 |