St Martin weather live forecast

• Wednesday
  24th Sep
  32
  27
  
  4
  8
• Thursday
  25th Sep
  32
  28
  
  7
  10
• Friday
  26th Sep
  33
  28
  
  7
  10
• Saturday
  27th Sep
  33
  28
  
  8
  11
• Sunday
  28th Sep
  32
  28
  
  7
  11

5-day weather forecast updated at 04:01 on Wednesday 24th September 2025 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 Wednesday 24th September 2025

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 4 hours of bright sunshine. There are 30-40 mm of rainfall expected with 87% chance of some rain and a moderate breeze of 24 kph from the south-east.

• 32
  °C maximum temperature
• 27
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 8
  UV index (Very High)
• 87
  % chance of some rain
• <40
  mm of rainfall expected
• H
  high heat & humidity
• 24
  kph wind from SE

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St Martin weather for Thursday 25th September 2025

Expect isolated thunderstorms in St Martin, St Martin with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and a light breeze of 12 kph from the south-east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 10
  UV index (Very High)
• 39
  % chance of some rain
• <5
  mm of rainfall expected
• H
  high heat & humidity
• 12
  kph wind from SE

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St Martin weather for Friday 26th September 2025

Expect isolated thunderstorms in St Martin, St Martin with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 56% chance of some rain and a light breeze of 10 kph from the south.

• 33
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 10
  UV index (Very High)
• 56
  % chance of some rain
• <20
  mm of rainfall expected
• H
  high heat & humidity
• 10
  kph wind from S

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St Martin weather for Saturday 27th September 2025

Expect isolated thunderstorms in St Martin, St Martin with a maximum temperature of 33°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 55% chance of some rain and a gentle breeze of 14 kph from the south-east.

• 33
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 8
  hours of sunshine
• 11
  UV index (Extreme)
• 55
  % chance of some rain
• <2
  mm of rainfall expected
• H
  high heat & humidity
• 14
  kph wind from SE

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St Martin weather for Sunday 28th September 2025

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 7 hours of bright sunshine. There are 20-30 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 19 kph from the south-east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 11
  UV index (Extreme)
• 54
  % chance of some rain
• <30
  mm of rainfall expected
• H
  high heat & humidity
• 19
  kph wind from SE

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• Book online & save up to 4% on Marella Cruises
• Discount varies by season. Book online with TUI
• Destinations across the Med, Caribbean & USA

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View all Marella Cruises offers

Metric (°C / mm)  |  Imperial (°F / inches)

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