Grenada weather in August 2025

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

  • 30°C maximum daytime temperature in August in Grenada (St George's)30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 18 days with some rainfall in August in Grenada (St George's)18
    18 days with some rainfall
  • 23°C minimum night-time temperature in August in Grenada (St George's)23
    23°C min night temperature
  • 13 hours of daylight per day in August in Grenada (St George's)13
    13 hours of daylight per day
  • High heat & humidity in August in Grenada (St George's)H
    High heat & humidity
  • 195 mm monthly rainfall in August in Grenada (St George's)195
    195 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Grenada (St George's)11
    11+ (Extreme) UV index
  • 29°C sea temperature in August in Grenada (St George's)29
    29°C sea temperature

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The August weather guide for Grenada (St George's) 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.

Top Grenada destinations

Below are average maximum temperatures at popular countries, regions and places in Grenada in August. Select a holiday destination to see more weather parameters.

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

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More about Grenada

How hot is it in Grenada in August?

Daytime temperatures usually reach 30°C in St George's, Grenada in August with high heat and humidity, falling to 23°C at night.

How sunny is it in Grenada in August?

There are normally 8 hours of bright sunshine each day in St George's, Grenada in August - that's 62% of daylight hours.

How warm is the sea around Grenada in August?

The average sea temperature around St George's, Grenada in August is 29°C.

Does it rain in Grenada in August?

There are usually 18 days with some rain in St George's, Grenada in August and the average monthly rainfall is 195mm.

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

On average less than 1 day in August in St George's, Grenada is likely to be affected by the passage of one or more tropical storms.

Grenada August sunrise & sunset times

Browse the sunrise and sunset times for Grenada in August 2025. Select a month to view Grenada sunrise and sunset times for the next 12 months. The Grenada sunrise and sunset times shown below are for St George's.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:54 18:33
Saturday, 16th August 2025 05:56 18:26
Sunday, 31st August 2025 05:57 18:18

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