St Martin weather live forecast

Tuesday
15th Sep
32

28

7

11
Wednesday
16th Sep
32

28

5

11
Thursday
17th Sep
32

27

6

8
Friday
18th Sep
32

28

8

11
Saturday
19th Sep
32

28

7

11

5-day weather forecast updated at 04:01 on Tuesday 15th September 2026 GMT

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

St Martin weather forecast by day

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

St Martin weather for Tuesday 15th September 2026

Expect broken clouds in St Martin, St Martin 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 mm of rainfall expected and a gentle breeze of 19 kph from the east.

32
°C maximum temperature
28
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from E

St Martin weather for Wednesday 16th September 2026

Expect isolated thunderstorms in St Martin, St Martin with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 21 kph from the east.

32
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
92
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
21
kph wind from E

St Martin weather for Thursday 17th September 2026

Expect isolated thunderstorms in St Martin, St Martin with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 65% chance of some rain and a moderate breeze of 22 kph from the east.

32
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
65
% chance of some rain
<20
mm of rainfall expected
H
high heat & humidity
22
kph wind from E

St Martin weather for Friday 18th September 2026

Expect isolated thunderstorms in St Martin, St Martin 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 0-2 mm of rainfall expected with 35% chance of some rain and a gentle breeze of 15 kph from the east.

32
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
35
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
15
kph wind from E

St Martin weather for Saturday 19th September 2026

Expect isolated thunderstorms in St Martin, St Martin with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 43% chance of some rain and a light breeze of 8 kph from the east.