Gros Islet weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Gros Islet in August. Check more long-term weather averages for Gros Islet in August before you book your next holiday to St Lucia in 2025/2026.

  • 30°C maximum daytime temperature in August in Gros Islet30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 20 days with some rainfall in August in Gros Islet20
    20 days with some rainfall
  • 24°C minimum night-time temperature in August in Gros Islet24
    24°C min night temperature
  • 13 hours of daylight per day in August in Gros Islet13
    13 hours of daylight per day
  • Very high heat & humidity in August in Gros IsletVH
    Very High heat & humidity
  • 216 mm monthly rainfall in August in Gros Islet216
    216 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Gros Islet11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in Gros Islet28
    28°C sea temperature

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The August weather guide for St Lucia (Gros Islet) 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 Lucia

How hot is it in Gros Islet in August?

Daytime temperatures usually reach 30°C in Gros Islet in August with very high heat and humidity, falling to 24°C at night.

How sunny is it in Gros Islet in August?

There are normally 8 hours of bright sunshine each day in Gros Islet in August - that's 65% of daylight hours.

How warm is the sea around Gros Islet in August?

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

Does it rain in Gros Islet in August?

There are usually 20 days with some rain in Gros Islet in August and the average monthly rainfall is 216mm.

What is the chance of a hurricane in Gros Islet in August?

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

Gros Islet August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:48 18:32
Saturday, 16th August 2025 05:51 18:25
Sunday, 31st August 2025 05:52 18:16

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