St. BartsSaint Barthelemy · Caribbean · Year-round overview
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St. Barts

Saint Barthelemy · Caribbean

St. Barts is most comfortable in the drier months around January to April. Typical daytime highs run about 83-88°F year-round. The climate is hot and humid. The wettest months are roughly September to November.

Best time to go
St. Barts travel scene
12 mo · Typical year
Temperature range
74°F to 88°F
Rain
8 days/mo
Sunshine
11.2 h/day
Humidity feel
Humid year-round
When to visit

Month-by-month fit

Temperature

Hot by day, warm at night.

88°Ftypical Aug high
70°80°90°HighLow89°F83°F79°F73°FJanMarMayJulSepNovCurrent month · 88°F
Typical range

Precipitation

Frequent light showers across the month.

48%wet-day frequency
012345678Amount (in)0%25%50%75%100%3%JanMarMayJulSepNovCurrent month · 48%48%
AmountWet-day chance

Sunshine

Plenty of sun this month.

11.7 hAug sunshine
0 h4 h8 h12 h16 h9.9 hJanMarMayJulSepNovCurrent month · 11.7 h11.7 h

Heat & humidity by month

Hot afternoons occur, with humid air through much of the month.

51%Aug share of very humid air hours
0%25%50%75%100%51% Very humid air97% Humid airJanMarMayJulSepNov
Easy airWarm airHumid airVery humid air

Hourly comfort pattern

In August, afternoons feel about 84° and nights feel near 82°.

January 12 AM - 75° (Comfortable) - NighttimeJanuary 1 AM - 74° (Comfortable) - NighttimeJanuary 2 AM - 74° (Comfortable) - NighttimeJanuary 3 AM - 74° (Comfortable) - NighttimeJanuary 4 AM - 74° (Comfortable) - NighttimeJanuary 5 AM - 74° (Comfortable) - NighttimeJanuary 6 AM - 74° (Comfortable) - NighttimeJanuary 7 AM - 75° (Comfortable)January 8 AM - 74° (Comfortable)January 9 AM - 75° (Comfortable)January 10 AM - 75° (Comfortable)January 11 AM - 75° (Comfortable)January 12 PM - 75° (Comfortable)January 1 PM - 75° (Warm)January 2 PM - 75° (Warm)January 3 PM - 76° (Warm)January 4 PM - 76° (Warm)January 5 PM - 75° (Warm)January 6 PM - 76° (Warm)January 7 PM - 76° (Warm) - NighttimeJanuary 8 PM - 75° (Warm) - NighttimeJanuary 9 PM - 75° (Comfortable) - NighttimeJanuary 10 PM - 75° (Comfortable) - NighttimeJanuary 11 PM - 75° (Comfortable) - NighttimeFebruary 12 AM - 74° (Comfortable) - NighttimeFebruary 1 AM - 74° (Comfortable) - NighttimeFebruary 2 AM - 73° (Comfortable) - NighttimeFebruary 3 AM - 73° (Comfortable) - NighttimeFebruary 4 AM - 73° (Comfortable) - NighttimeFebruary 5 AM - 73° (Comfortable) - NighttimeFebruary 6 AM - 74° (Comfortable) - NighttimeFebruary 7 AM - 74° (Comfortable)February 8 AM - 74° (Comfortable)February 9 AM - 74° (Comfortable)February 10 AM - 74° (Comfortable)February 11 AM - 74° (Comfortable)February 12 PM - 74° (Comfortable)February 1 PM - 75° (Comfortable)February 2 PM - 75° (Comfortable)February 3 PM - 75° (Comfortable)February 4 PM - 75° (Comfortable)February 5 PM - 75° (Comfortable)February 6 PM - 75° (Warm)February 7 PM - 75° (Comfortable)February 8 PM - 75° (Comfortable) - NighttimeFebruary 9 PM - 74° (Comfortable) - NighttimeFebruary 10 PM - 74° (Comfortable) - NighttimeFebruary 11 PM - 74° (Comfortable) - NighttimeMarch 12 AM - 74° (Comfortable) - NighttimeMarch 1 AM - 74° (Comfortable) - NighttimeMarch 2 AM - 74° (Comfortable) - NighttimeMarch 3 AM - 74° (Comfortable) - NighttimeMarch 4 AM - 74° (Comfortable) - NighttimeMarch 5 AM - 74° (Comfortable) - NighttimeMarch 6 AM - 74° (Comfortable) - NighttimeMarch 7 AM - 74° (Comfortable)March 8 AM - 74° (Comfortable)March 9 AM - 74° (Comfortable)March 10 AM - 75° (Comfortable)March 11 AM - 75° (Comfortable)March 12 PM - 75° (Comfortable)March 1 PM - 76° (Warm)March 2 PM - 76° (Warm)March 3 PM - 76° (Warm)March 4 PM - 76° (Warm)March 5 PM - 76° (Warm)March 6 PM - 76° (Warm)March 7 PM - 76° (Warm)March 8 PM - 76° (Warm) - NighttimeMarch 9 PM - 75° (Warm) - NighttimeMarch 10 PM - 75° (Comfortable) - NighttimeMarch 11 PM - 75° (Comfortable) - NighttimeApril 12 AM - 76° (Warm) - NighttimeApril 1 AM - 76° (Warm) - NighttimeApril 2 AM - 76° (Warm) - NighttimeApril 3 AM - 76° (Warm) - NighttimeApril 4 AM - 76° (Warm) - NighttimeApril 5 AM - 76° (Warm) - NighttimeApril 6 AM - 76° (Warm)April 7 AM - 76° (Warm)April 8 AM - 77° (Warm)April 9 AM - 77° (Warm)April 10 AM - 77° (Warm)April 11 AM - 77° (Warm)April 12 PM - 77° (Warm)April 1 PM - 78° (Warm)April 2 PM - 78° (Warm)April 3 PM - 78° (Warm)April 4 PM - 78° (Warm)April 5 PM - 78° (Warm)April 6 PM - 78° (Warm)April 7 PM - 78° (Warm)April 8 PM - 77° (Warm) - NighttimeApril 9 PM - 77° (Warm) - NighttimeApril 10 PM - 77° (Warm) - NighttimeApril 11 PM - 77° (Warm) - NighttimeMay 12 AM - 79° (Warm) - NighttimeMay 1 AM - 79° (Warm) - NighttimeMay 2 AM - 79° (Warm) - NighttimeMay 3 AM - 79° (Warm) - NighttimeMay 4 AM - 79° (Warm) - NighttimeMay 5 AM - 79° (Warm) - NighttimeMay 6 AM - 79° (Warm)May 7 AM - 79° (Warm)May 8 AM - 79° (Warm)May 9 AM - 79° (Warm)May 10 AM - 80° (Warm)May 11 AM - 80° (Warm)May 12 PM - 80° (Warm)May 1 PM - 80° (Warm)May 2 PM - 80° (Warm)May 3 PM - 81° (Warm)May 4 PM - 81° (Warm)May 5 PM - 81° (Warm)May 6 PM - 81° (Warm)May 7 PM - 80° (Warm)May 8 PM - 80° (Warm) - NighttimeMay 9 PM - 80° (Warm) - NighttimeMay 10 PM - 80° (Warm) - NighttimeMay 11 PM - 79° (Warm) - NighttimeJune 12 AM - 80° (Warm) - NighttimeJune 1 AM - 80° (Warm) - NighttimeJune 2 AM - 80° (Warm) - NighttimeJune 3 AM - 80° (Warm) - NighttimeJune 4 AM - 80° (Warm) - NighttimeJune 5 AM - 80° (Warm) - NighttimeJune 6 AM - 81° (Warm)June 7 AM - 81° (Warm)June 8 AM - 81° (Warm)June 9 AM - 81° (Warm)June 10 AM - 81° (Warm)June 11 AM - 81° (Warm)June 12 PM - 81° (Warm)June 1 PM - 81° (Warm)June 2 PM - 82° (Warm)June 3 PM - 82° (Warm)June 4 PM - 82° (Warm)June 5 PM - 81° (Warm)June 6 PM - 82° (Warm)June 7 PM - 82° (Warm)June 8 PM - 81° (Warm) - NighttimeJune 9 PM - 81° (Warm) - NighttimeJune 10 PM - 81° (Warm) - NighttimeJune 11 PM - 80° (Warm) - NighttimeJuly 12 AM - 80° (Warm) - NighttimeJuly 1 AM - 80° (Warm) - NighttimeJuly 2 AM - 80° (Warm) - NighttimeJuly 3 AM - 80° (Warm) - NighttimeJuly 4 AM - 80° (Warm) - NighttimeJuly 5 AM - 80° (Warm) - NighttimeJuly 6 AM - 81° (Warm)July 7 AM - 81° (Warm)July 8 AM - 81° (Warm)July 9 AM - 81° (Warm)July 10 AM - 81° (Warm)July 11 AM - 81° (Warm)July 12 PM - 82° (Warm)July 1 PM - 82° (Warm)July 2 PM - 82° (Warm)July 3 PM - 82° (Warm)July 4 PM - 82° (Warm)July 5 PM - 82° (Warm)July 6 PM - 82° (Warm)July 7 PM - 82° (Warm)July 8 PM - 81° (Warm) - NighttimeJuly 9 PM - 81° (Warm) - NighttimeJuly 10 PM - 81° (Warm) - NighttimeJuly 11 PM - 81° (Warm) - NighttimeAugust 12 AM - 82° (Warm) - NighttimeAugust 1 AM - 82° (Warm) - NighttimeAugust 2 AM - 82° (Warm) - NighttimeAugust 3 AM - 82° (Warm) - NighttimeAugust 4 AM - 82° (Warm) - NighttimeAugust 5 AM - 82° (Warm) - NighttimeAugust 6 AM - 82° (Warm)August 7 AM - 82° (Warm)August 8 AM - 82° (Warm)August 9 AM - 83° (Warm)August 10 AM - 83° (Warm)August 11 AM - 83° (Warm)August 12 PM - 83° (Warm)August 1 PM - 84° (Warm)August 2 PM - 84° (Warm)August 3 PM - 84° (Warm)August 4 PM - 84° (Warm)August 5 PM - 84° (Warm)August 6 PM - 84° (Warm)August 7 PM - 84° (Warm)August 8 PM - 83° (Warm) - NighttimeAugust 9 PM - 83° (Warm) - NighttimeAugust 10 PM - 83° (Warm) - NighttimeAugust 11 PM - 82° (Warm) - NighttimeSeptember 12 AM - 84° (Warm) - NighttimeSeptember 1 AM - 83° (Warm) - NighttimeSeptember 2 AM - 83° (Warm) - NighttimeSeptember 3 AM - 83° (Warm) - NighttimeSeptember 4 AM - 83° (Warm) - NighttimeSeptember 5 AM - 83° (Warm) - NighttimeSeptember 6 AM - 84° (Warm) - NighttimeSeptember 7 AM - 84° (Warm)September 8 AM - 84° (Warm)September 9 AM - 84° (Warm)September 10 AM - 84° (Warm)September 11 AM - 84° (Hot)September 12 PM - 84° (Hot)September 1 PM - 85° (Hot)September 2 PM - 85° (Hot)September 3 PM - 85° (Hot)September 4 PM - 85° (Hot)September 5 PM - 85° (Hot)September 6 PM - 85° (Hot)September 7 PM - 85° (Hot)September 8 PM - 84° (Hot) - NighttimeSeptember 9 PM - 84° (Warm) - NighttimeSeptember 10 PM - 84° (Warm) - NighttimeSeptember 11 PM - 84° (Warm) - NighttimeOctober 12 AM - 83° (Warm) - NighttimeOctober 1 AM - 83° (Warm) - NighttimeOctober 2 AM - 83° (Warm) - NighttimeOctober 3 AM - 83° (Warm) - NighttimeOctober 4 AM - 83° (Warm) - NighttimeOctober 5 AM - 82° (Warm) - NighttimeOctober 6 AM - 83° (Warm) - NighttimeOctober 7 AM - 83° (Warm)October 8 AM - 83° (Warm)October 9 AM - 83° (Warm)October 10 AM - 83° (Warm)October 11 AM - 84° (Warm)October 12 PM - 84° (Warm)October 1 PM - 84° (Warm)October 2 PM - 84° (Warm)October 3 PM - 84° (Warm)October 4 PM - 84° (Warm)October 5 PM - 84° (Warm)October 6 PM - 84° (Hot)October 7 PM - 84° (Warm) - NighttimeOctober 8 PM - 84° (Warm) - NighttimeOctober 9 PM - 84° (Warm) - NighttimeOctober 10 PM - 83° (Warm) - NighttimeOctober 11 PM - 83° (Warm) - NighttimeNovember 12 AM - 80° (Warm) - NighttimeNovember 1 AM - 80° (Warm) - NighttimeNovember 2 AM - 80° (Warm) - NighttimeNovember 3 AM - 80° (Warm) - NighttimeNovember 4 AM - 80° (Warm) - NighttimeNovember 5 AM - 80° (Warm) - NighttimeNovember 6 AM - 80° (Warm) - NighttimeNovember 7 AM - 80° (Warm)November 8 AM - 80° (Warm)November 9 AM - 80° (Warm)November 10 AM - 81° (Warm)November 11 AM - 81° (Warm)November 12 PM - 81° (Warm)November 1 PM - 81° (Warm)November 2 PM - 81° (Warm)November 3 PM - 81° (Warm)November 4 PM - 81° (Warm)November 5 PM - 81° (Warm)November 6 PM - 81° (Warm)November 7 PM - 81° (Warm) - NighttimeNovember 8 PM - 81° (Warm) - NighttimeNovember 9 PM - 81° (Warm) - NighttimeNovember 10 PM - 80° (Warm) - NighttimeNovember 11 PM - 80° (Warm) - NighttimeDecember 12 AM - 77° (Warm) - NighttimeDecember 1 AM - 77° (Warm) - NighttimeDecember 2 AM - 76° (Warm) - NighttimeDecember 3 AM - 76° (Warm) - NighttimeDecember 4 AM - 76° (Warm) - NighttimeDecember 5 AM - 76° (Warm) - NighttimeDecember 6 AM - 77° (Warm) - NighttimeDecember 7 AM - 77° (Warm)December 8 AM - 77° (Warm)December 9 AM - 77° (Warm)December 10 AM - 77° (Warm)December 11 AM - 77° (Warm)December 12 PM - 77° (Warm)December 1 PM - 77° (Warm)December 2 PM - 78° (Warm)December 3 PM - 78° (Warm)December 4 PM - 77° (Warm)December 5 PM - 77° (Warm)December 6 PM - 78° (Warm)December 7 PM - 77° (Warm) - NighttimeDecember 8 PM - 77° (Warm) - NighttimeDecember 9 PM - 77° (Warm) - NighttimeDecember 10 PM - 77° (Warm) - NighttimeDecember 11 PM - 77° (Warm) - Nighttime12 AM6 AM12 PM6 PM11 PMJanFebMarAprMayJunJulAugSepOctNovDec
ComfortableWarmHotNight shading

Sea temperature

84°Aug sea temp
70°75°90°Comfortable swim 75°+79°JanMarMayJulSepNovCurrent month · 84°84°
More detailIncludes sky, daypart comfort, and wind

Cloud cover

Partly cloudy across the month.

50%Aug clear sky
0%25%50%75%100%71%JanMarMayJulSepNovCurrent month · 50%50%
ClearCloud cover
Typical August day

August stays around 82°F through the day and night, with little temperature relief.

Avg temp Typical range
Morning81°F
Feels 83°F
Rain24%
Cloud48%
Humid airVery high
Sun intensityModerate
Midday82°F
Feels 84°F
Rain19%
Cloud47%
Humid airVery high
Sun intensityStrong
Late afternoon82°F
Feels 84°F
Rain21%
Cloud48%
Humid airVery high
Sun intensityModerate
Early evening82°F
Rain26%
Cloud49%
Humid airVery high
Sun intensityMinimal
Best window

Wind pattern

Wind can affect exposed beach comfort.

16 mphAug Windy
0 mph5 mph10 mph15 mph20 mph25 mphJanMarMayJulSepNovCurrent month · 16 mph16 mph
Typical wind speed (mph)

Similar

Similar things to doFort-de-FranceMartiniqueSimilar things to doGrenadaGrenadaSimilar things to doPointe-à-PitreGuadeloupeSimilar things to doKey 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.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 1, 2026

Data & methodology