Mustique weather in August 2025

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Mustique in August. Check more long-term weather averages for Mustique in August before you book your next holiday to St Vincent & the Grenadines in 2025/2026.

  • 29°C maximum daytime temperature in August in Mustique29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 20 days with some rainfall in August in Mustique20
    20 days with some rainfall
  • 23°C minimum night-time temperature in August in Mustique23
    23°C min night temperature
  • 13 hours of daylight per day in August in Mustique13
    13 hours of daylight per day
  • Very high heat & humidity in August in MustiqueVH
    Very High heat & humidity
  • 282 mm monthly rainfall in August in Mustique282
    282 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Mustique11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in Mustique28
    28°C sea temperature

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The August weather guide for St Vincent & the Grenadines (Mustique) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

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More about St Vincent & the Grenadines

How hot is it in Mustique in August?

Daytime temperatures usually reach 29°C in Mustique in August with very high heat and humidity, falling to 23°C at night.

How sunny is it in Mustique in August?

There are normally 8 hours of bright sunshine each day in Mustique in August - that's 64% of daylight hours.

How warm is the sea around Mustique in August?

The average sea temperature around Mustique in August is 28°C.

Does it rain in Mustique in August?

There are usually 20 days with some rain in Mustique in August and the average monthly rainfall is 282mm.

What is the chance of a hurricane in Mustique in August?

On average less than 1 day in August in Mustique is likely to be affected by the passage of one or more tropical storms.

Mustique August sunrise & sunset times

Browse the sunrise and sunset times for Mustique in August 2025. Select a month to view Mustique sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:51 18:31
Saturday, 16th August 2025 05:53 18:25
Sunday, 31st August 2025 05:54 18:16

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