St Barthelemy weather live forecast

Sunday
14th Sep
31

28

6

10
Monday
15th Sep
31

28

7

10
Tuesday
16th Sep
31

27

7

9
Wednesday
17th Sep
30

27

5

6
Thursday
18th Sep
31

27

7

11

5-day weather forecast updated at 04:02 on Sunday 14th September 2025 GMT

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The 5-day weather forecast for St Barthelemy is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

St Barthelemy weather forecast by day

Below are the detailed weather forecasts for St Barthelemy for the next 5 days.

St Barthelemy weather for Sunday 14th September 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 28 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
32
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
28
kph wind from E

St Barthelemy weather for Monday 15th September 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a moderate breeze of 28 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
10
UV index (Very High)
74
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
28
kph wind from E

St Barthelemy weather for Tuesday 16th September 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a fresh breeze of 29 kph from the east.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
86
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
29
kph wind from E

St Barthelemy weather for Wednesday 17th September 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 30-40 mm of rainfall expected with 95% chance of some rain and a moderate breeze of 25 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
6
UV index (High)
95
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from E

St Barthelemy weather for Thursday 18th September 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 25 kph from the south-east.