St Martin weather live forecast

• Sunday
  7th Sep
  32
  28
  
  7
  9
• Monday
  8th Sep
  32
  28
  
  9
  10
• Tuesday
  9th Sep
  32
  28
  
  7
  8
• Wednesday
  10th Sep
  32
  28
  
  7
  8
• Thursday
  11th Sep
  32
  28
  
  8
  11

5-day weather forecast updated at 04:02 on Sunday 7th 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 Sunday 7th 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 9 (Very High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 18 kph from the east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 9
  UV index (Very High)
• 84
  % chance of some rain
• <20
  mm of rainfall expected
• H
  high heat & humidity
• 18
  kph wind from E

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St Martin weather for Monday 8th September 2025

Expect scattered clouds in St Martin, St Martin with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  scattered clouds
• 9
  hours of sunshine
• 10
  UV index (Very High)
• 0
  mm of rainfall expected
• H
  high heat & humidity
• 17
  kph wind from E

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St Martin weather for Tuesday 9th 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 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 16 kph from the east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 8
  UV index (Very High)
• 62
  % chance of some rain
• <10
  mm of rainfall expected
• H
  high heat & humidity
• 16
  kph wind from E

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St Martin weather for Wednesday 10th 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 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 69% chance of some rain and a gentle breeze of 18 kph from the east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 8
  UV index (Very High)
• 69
  % chance of some rain
• <20
  mm of rainfall expected
• H
  high heat & humidity
• 18
  kph wind from E

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St Martin weather for Thursday 11th 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 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a gentle breeze of 18 kph from the east.

• 32
  °C maximum temperature
• 28
  °C minimum temperature
• 
  isolated thunderstorms
• 8
  hours of sunshine
• 11
  UV index (Extreme)
• 42
  % chance of some rain
• <2
  mm of rainfall expected
• H
  high heat & humidity
• 18
  kph wind from E

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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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