Island, Saint Barthelemy
St. Barts weather by month and the best time to visit
When to go to St. Barts
Dec–Apr is dry and peak season, with New Year and spring regattas. Jun–Nov is hotter and wetter, hurricane risk Aug–Oct, and some restaurants close.
St. Barts weather by month
Average daily high, rainfall and conditions.
- Jan26°20 mm
- Feb26°12 mm
- Mar26°16 mm
- Apr27°26 mm
- May28°63 mm
- Jun28°42 mm
- Jul28°54 mm
- Aug29°66 mm
- Sep29°90 mm
- Oct29°108 mm
- Nov28°78 mm
- Dec27°40 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 26°C79°F | 25°C78°F | 20 mm | 76% | Pleasant |
| February | 26°C79°F | 25°C77°F | 12 mm | 75% | Pleasant |
| March | 26°C79°F | 25°C77°F | 16 mm | 75% | Pleasant |
| April | 27°C80°F | 26°C78°F | 26 mm | 76% | Pleasant |
| May | 28°C82°F | 27°C80°F | 63 mm | 79% | Pleasant |
| June | 28°C83°F | 27°C81°F | 42 mm | 79% | Pleasant |
| July | 28°C83°F | 28°C82°F | 54 mm | 79% | Pleasant |
| August | 29°C84°F | 28°C82°F | 66 mm | 79% | Pleasant |
| September | 29°C84°F | 28°C82°F | 90 mm | 79% | Pleasant |
| October | 29°C84°F | 28°C82°F | 108 mm | 78% | Pleasant |
| November | 28°C82°F | 27°C81°F | 78 mm | 78% | Pleasant |
| December | 27°C81°F | 26°C79°F | 40 mm | 77% | Pleasant |
Quick answers
What is the best month to visit St. Barts?
Dec–Apr. Dec–Apr is dry and peak season, with New Year and spring regattas. Jun–Nov is hotter and wetter, hurricane risk Aug–Oct, and some restaurants close.
When is the rainy season in St. Barts?
Rain peaks in October with about 108 mm. No month averages 150 mm or more.
What is the hottest month in St. Barts?
September, with average highs of 29°C (84°F).
How cold does St. Barts get?
The coolest nights are in February, averaging 25°C (77°F).
More about St. Barts
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.