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St John's weather
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in August
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The weather guide for St John's, Antigua shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.
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Which is the hottest month in St John's?
The hottest time of year in St John's is normally August. Expect maximum daytime temperatures to reach 31°C with very high heat and humidity.
Which month has the most rain in St John's?
In terms of rainfall, September is usually the wettest month in St John's with 140mm on average. There are normally 17 days in September with some rain.
When is it sunniest in St John's?
The sunniest time of year in St John's is normally January with bright sunshine on average for 67% of daylight hours; that's 8 hours of sunshine per day.
When is the sea warmest in St John's?
The sea is usually at its warmest in St John's in September when the water temperature reaches 29°C.
Metric (°C / mm) | Imperial (°F / inches)
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Compare St John's weather with the USA
Below the St John's weather chart shows average maximum daytime temperature for St John's, Antigua and the USA (Washington).
Maximum daytime temperature (°C)
St John's, Antigua
USA (Washington)
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Metric (°C / mm) | Imperial (°F / inches)
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Tropical storm risk: St John's, Antigua hurricane season
% of month affected by tropical storms
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The St John's, Antigua tropical storm risk chart above shows the hurricane season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.
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Where's hot in Antigua right now?
Below are the temperatures expected today at popular destinations in Antigua. Select a destination to compare today's forecast with average weather conditions.
- Codrington, Barbuda
- Dickenson's Bay
- English Harbour
- Falmouth Harbour
- Five Islands
- Jolly Harbour
- Long Bay
- Mamora Bay
- Soldiers Bay
- St John's
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