Antigua weather in August 2025

Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Antigua in August. Check more long-term weather averages for Antigua in August before you book your next holiday to Antigua in 2025/2026.

  • 31°C maximum daytime temperature in August in Antigua (St John's)31
    31°C max day temperature
  • 8 hours of sunshine per day
  • 16 days with some rainfall in August in Antigua (St John's)16
    16 days with some rainfall
  • 25°C minimum night-time temperature in August in Antigua (St John's)25
    25°C min night temperature
  • 13 hours of daylight per day in August in Antigua (St John's)13
    13 hours of daylight per day
  • Very high heat & humidity in August in Antigua (St John's)VH
    Very High heat & humidity
  • 124 mm monthly rainfall in August in Antigua (St John's)124
    124 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Antigua (St John's)11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in Antigua (St John's)28
    28°C sea temperature

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The August weather guide for Antigua (St John'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 Antigua destinations

Below are average maximum temperatures at popular countries, regions and places in Antigua 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 Antigua

How hot is it in Antigua in August?

Daytime temperatures usually reach 31°C in St John's, Antigua in August with very high heat and humidity, falling to 25°C at night.

How sunny is it in Antigua in August?

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

How warm is the sea around Antigua in August?

The average sea temperature around St John's, Antigua in August is 28°C.

Does it rain in Antigua in August?

There are usually 16 days with some rain in St John's, Antigua in August and the average monthly rainfall is 124mm.

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

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

Antigua August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:47 18:40
Saturday, 16th August 2025 05:51 18:32
Sunday, 31st August 2025 05:54 18:21

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