The climate in Antigua during September can be summarized as warm, humid and very dry.
September is in the fall / autumn in Antigua and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 19°C (66°F) is normal.
Daytime temperature | 26.2°C 79.2°F |
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Nightly temperature | 19°C 66.2°F |
Average temperature | 22.6°C 72.7°F |
Daily sunshine | 8 hrs |
Avg rainfall | 4 mm 0.1 ins |
Rainy days | 1 days |
Sea temperature | 23.1°C 73.6°F |
Humidity | 70% |
Windspeed | 13.7kph 9 mph |
On average September is the 5th driest month of the year in Antigua with around 4mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Antigua in September 2025.
Best places to visit in September
Hottest month: | August | 26.6°C 79.9°F |
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Driest month: | June | 0mm 0ins |
Sunniest month: | August | 9.4hrs |
Coldest month: | January | 18.7°C 65.7°F |
Wettest month: | December | 22mm 0.9ins |