Temperature
Warm by day, warm at night.
79°Ftypical December high
Typical range
December climate
December in St. Barts
Saint Barthelemy · Caribbean
Warm days and plenty of sun. Wind on exposed beaches and humid air are the main drawbacks.
Excellent time to visit
Daytime high
79°F
Lows around 77°F
Rain
Several rainy days
Sun
10.5 h/day
Air feel
Humid
Sea temp
82°F
Great for swimming
Wind
16 mph
Windy
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days, mostly brief and on-and-off. About 12 wet days this month.
39%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
10.3 hDecember sunshine
Heat & humidity by month
Warm days, with humid periods.
96%December Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In December, afternoons feel about 78° and nights feel near 76°.
ComfortableWarmHotNight hours
Clear sky
Mostly clear skies this month.
65%December Clear sky
Clear skyCloud
Wind pattern
Wind can affect exposed beach comfort.
16 mphDecember Windy
Sea temperature
82°FDecember sea temp
More detailIncludes daypart comfort
Typical December day
December stays around 78°F through the day and night.
Avg temp Typical range
Morning78°F
Rain21%
Cloud33%
Humid airVery high
Sun intensityModerate
Midday78°F
Rain18%
Cloud33%
Humid airVery high
Sun intensityStrong
Late afternoon79°F
Rain18%
Cloud34%
Humid airVery high
Sun intensityModerate
Early evening79°F
Rain24%
Cloud35%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 78 | 76 | 1.1 | 10 | 10.8 | 77 | 80 |
| Feb | 78 | 75 | 1.0 | 7 | 11.0 | 76 | 79 |
| Mar | 78 | 76 | 0.8 | 7 | 11.4 | 76 | 79 |
| Apr | 79 | 76 | 1.4 | 8 | 11.8 | 78 | 80 |
| May | 80 | 78 | 2.2 | 12 | 11.5 | 80 | 81 |
| Jun | 82 | 79 | 1.9 | 11 | 12.1 | 80 | 83 |
| Jul | 82 | 79 | 2.9 | 15 | 12.1 | 81 | 83 |
| Aug | 83 | 80 | 3.5 | 16 | 11.7 | 81 | 84 |
| Sep | 83 | 80 | 4.4 | 17 | 11.1 | 81 | 85 |
| Oct | 82 | 79 | 5.7 | 17 | 10.7 | 81 | 84 |
| Nov | 81 | 78 | 4.2 | 15 | 10.3 | 80 | 83 |
| Dec | 79 | 77 | 1.8 | 12 | 10.3 | 77 | 82 |
Similar climates
Similar
Similar travel styleFort-de-FranceMartiniqueSimilar travel styleGrenadaGrenadaSimilar travel stylePointe-à-PitreGuadeloupeSimilar travel styleKey WestUnited States
Want a side-by-side climate view? Compare St. Barts with Fort-de-France.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology