St Barthelemy weather live forecast

Sunday
30th Aug
32

28

3

6
Monday
31st Aug
32

28

3

9
Tuesday
1st Sep
32

28

8

11
Wednesday
2nd Sep
32

28

7

11
Thursday
3rd Sep
32

28

7

11

5-day weather forecast updated at 04:01 on Sunday 30th August 2026 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 30th August 2026

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 96% chance of some rain and a fresh breeze of 32 kph from the south-east.

32
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
96
% chance of some rain
<30
mm of rainfall expected
H
high heat & humidity
32
kph wind from SE

St Barthelemy weather for Monday 31st August 2026

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 77% chance of some rain and a moderate breeze of 28 kph from the south-east.

32
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
9
UV index (Very High)
77
% chance of some rain
<20
mm of rainfall expected
H
high heat & humidity
28
kph wind from SE

St Barthelemy weather for Tuesday 1st September 2026

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 44% chance of some rain and a gentle breeze of 13 kph from the east.

32
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
44
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
13
kph wind from E

St Barthelemy weather for Wednesday 2nd September 2026

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 32°C, 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 30% chance of some rain and a light breeze of 11 kph from the east.

32
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
30
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
11
kph wind from E

St Barthelemy weather for Thursday 3rd September 2026

Expect isolated thunderstorms in St Barthelemy, St Barthelemy with a maximum temperature of 32°C, 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 48% chance of some rain and a gentle breeze of 19 kph from the east.