Grand Anse weather in August 2025

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

  • 30°C maximum daytime temperature in August in Grand Anse30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 20 days with some rainfall in August in Grand Anse20
    20 days with some rainfall
  • 24°C minimum night-time temperature in August in Grand Anse24
    24°C min night temperature
  • 13 hours of daylight per day in August in Grand Anse13
    13 hours of daylight per day
  • Very high heat & humidity in August in Grand AnseVH
    Very High heat & humidity
  • 216 mm monthly rainfall in August in Grand Anse216
    216 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Grand Anse11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in Grand Anse28
    28°C sea temperature

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The August weather guide for St Lucia (Grand Anse) 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 Grand Anse in August?

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

How sunny is it in Grand Anse in August?

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

How warm is the sea around Grand Anse in August?

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

Does it rain in Grand Anse in August?

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

What is the chance of a hurricane in Grand Anse in August?

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

Grand Anse August sunrise & sunset times

Browse the sunrise and sunset times for Grand Anse in August 2025. Select a month to view Grand Anse 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 05:50 18:25
Sunday, 31st August 2025 05:52 18:15

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