St Barthelemy weather live forecast

Monday
11th Aug
91

82

7

11
Tuesday
12th Aug
91

82

7

10
Wednesday
13th Aug
90

82

8

10
Thursday
14th Aug
90

82

8

11
Friday
15th Aug
90

82

7

11

5-day weather forecast updated at 04:01 on Sunday 10th August 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 Monday 11th August 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 91°F, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a moderate breeze of 13 mph from the east.

91
°F maximum temperature
82
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
54
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
13
mph wind from E

St Barthelemy weather for Tuesday 12th August 2025

Expect broken clouds in St Barthelemy, St Barthelemy with a maximum temperature of 91°F, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the east.

91
°F maximum temperature
82
°F minimum temperature
broken clouds
7
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
11
mph wind from E

St Barthelemy weather for Wednesday 13th August 2025

Expect broken clouds in St Barthelemy, St Barthelemy with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the east.

90
°F maximum temperature
82
°F minimum temperature
broken clouds
8
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
14
mph wind from E

St Barthelemy weather for Thursday 14th August 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 12 mph from the east.

90
°F maximum temperature
82
°F minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
64
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
12
mph wind from E

St Barthelemy weather for Friday 15th August 2025

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 58% chance of some rain and a gentle breeze of 9 mph from the east.