Mustique weather live forecast

Today's maximum temperature in Mustique is expected to be 82°F. Select a day from the live weather forecast for Mustique, St Vincent & the Grenadines for more weather parameters.

• Thursday
  18th Sep
  82
  82
  
  5
  9
• Friday
  19th Sep
  84
  82
  
  6
  9
• Saturday
  20th Sep
  82
  82
  
  6
  11
• Sunday
  21st Sep
  84
  82
  
  6
  11
• Monday
  22nd Sep
  84
  82
  
  7
  11

5-day weather forecast updated at 04:04 on Thursday 18th September 2025 GMT

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The 5-day weather forecast for St Vincent & the Grenadines (Mustique) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Mustique weather forecast by day

Below are the detailed weather forecasts for Mustique for the next 5 days.

Mustique weather for Thursday 18th September 2025

Expect isolated thunderstorms in Mustique, St Vincent & the Grenadines with a maximum temperature of 82°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a gentle breeze of 10 mph from the east.

• 82
  °F maximum temperature
• 82
  °F minimum temperature
• 
  isolated thunderstorms
• 5
  hours of sunshine
• 9
  UV index (Very High)
• 32
  % chance of some rain
• <2
  mm of rainfall expected
• M
  moderate heat & humidity
• 10
  mph wind from E

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Mustique weather for Friday 19th September 2025

Expect isolated thunderstorms in Mustique, St Vincent & the Grenadines with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 30% chance of some rain and a light breeze of 7 mph from the east.

• 84
  °F maximum temperature
• 82
  °F minimum temperature
• 
  isolated thunderstorms
• 6
  hours of sunshine
• 9
  UV index (Very High)
• 30
  % chance of some rain
• <2
  mm of rainfall expected
• M
  moderate heat & humidity
• 7
  mph wind from E

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Mustique weather for Saturday 20th September 2025

Expect isolated thunderstorms in Mustique, St Vincent & the Grenadines with a maximum temperature of 82°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 54% chance of some rain and a light breeze of 7 mph from the east.

• 82
  °F maximum temperature
• 82
  °F minimum temperature
• 
  isolated thunderstorms
• 6
  hours of sunshine
• 11
  UV index (Extreme)
• 54
  % chance of some rain
• <20
  mm of rainfall expected
• M
  moderate heat & humidity
• 7
  mph wind from E

Back to top

Mustique weather for Sunday 21st September 2025

Expect isolated thunderstorms in Mustique, St Vincent & the Grenadines with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 9 mph from the east.

• 84
  °F maximum temperature
• 82
  °F minimum temperature
• 
  isolated thunderstorms
• 6
  hours of sunshine
• 11
  UV index (Extreme)
• 53
  % chance of some rain
• <10
  mm of rainfall expected
• M
  moderate heat & humidity
• 9
  mph wind from E

Back to top

Mustique weather for Monday 22nd September 2025

Expect isolated thunderstorms in Mustique, St Vincent & the Grenadines with a maximum temperature of 84°F, 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 54% chance of some rain and a gentle breeze of 9 mph from the east.

• 84
  °F maximum temperature
• 82
  °F minimum temperature
• 
  isolated thunderstorms
• 7
  hours of sunshine
• 11
  UV index (Extreme)
• 54
  % chance of some rain
• <10
  mm of rainfall expected
• M
  moderate heat & humidity
• 9
  mph wind from E

Back to top

Sandals sale: up to £300 off Caribbean holidays

Discount Code

• Save up to £300 on all inclusive holidays to the Caribbean
• Discount varies by total spend. 7 night minimum stay
• Travel before 31st December 2027 (inclusive)

Show discount code ******ALE

Redeem Sandals discount code >>

Expires at 23:59 on Tuesday 30th Sep 2025 · View all Sandals offers

Metric (°C)  |  Imperial (°F)

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