Sunshine Map

Gustavia weather by month & the best time to visit

🇧🇱 St. Barthélemy · beach resort · semi-arid climate

The best time to visit Gustavia is February — its sunniest month (Sunshine Score 95/100), with March and January close behind. Gustavia averages about 3,109 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 12 mm of rain in February.

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Sun hours / year
3,109
Sunniest month
February
Peak score
95/100
Rain / year
615 mm
Midday UV at peak
12 (extreme)
Sea at warmest
30°C / 86°F
Population
6k
Elevation
9 m
Gustavia, St. Barthélemy
Gustavia — photo via Wikimedia Commons

When is the best time to visit Gustavia?

For sunshine, the best time to visit Gustavia is February, then March and January. The dullest month is October (78/100, 108 mm of rain). The full month-by-month picture is in the table below.

How sunny is Gustavia?

Gustavia is one of the sunniest places on Earth: about 3,109 hours of sunshine a year. February (95/100) is noticeably better than October (78). It is the only destination Sunshine Map tracks in St. Barthélemy. Rain has a clear season: the wettest stretch, around October, carries about 45% of the annual 615 mm.

Sunshine Score by month

January: 94February: 9595March: 95April: 93May: 86June: 90July: 88August: 85September: 81October: 78November: 83December: 90JFMAMJJASOND
MonthScoreDay highNight lowRainUVSea
January94 26° / 79°F25° / 77°F 20 mm828° / 82°F
February95 26° / 79°F25° / 77°F 12 mm1027° / 81°F
March95 26° / 79°F25° / 77°F 16 mm1127° / 81°F
April93 27° / 81°F26° / 79°F 26 mm1228° / 82°F
May86 27° / 81°F27° / 81°F 63 mm1129° / 84°F
June90 28° / 82°F27° / 81°F 42 mm1029° / 84°F
July88 28° / 82°F28° / 82°F 54 mm1029° / 84°F
August85 29° / 84°F28° / 82°F 66 mm1130° / 86°F
September81 29° / 84°F28° / 82°F 90 mm1030° / 86°F
October78 29° / 84°F28° / 82°F 108 mm930° / 86°F
November83 28° / 82°F27° / 81°F 78 mm829° / 84°F
December90 27° / 81°F26° / 79°F 40 mm729° / 84°F

Sea temperature in Gustavia by month

The sea off Gustavia is warmest in August at around 30°C / 86°F, and coolest in February at 27°C / 81°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.

See Gustavia on the interactive sunshine globe →

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