Antigua weather by month
Antigua is warmest in August (30°C average high) and coolest in February (27°C). Rain is part of every month in Antigua (at least 15 rainy days a month by our count). The driest months are January to March. The sea is warm enough for easy swimming all year.
Warmest month
August
30°C
Coolest month
February
27°C
Wettest month
August
22 rainy days
Flight from London
8h
direct, estimated
Antigua temperature by month
Tap a month for the detail and warmer alternatives.
When to go to Antigua
What is the best month to visit Antigua for sun?
Rain is part of every month in Antigua (at least 15 rainy days a month by our count). The driest months are January to March.
What is the hottest month in Antigua?
August averages 30°C. February is the coolest at 27°C.
When does it rain most in Antigua?
August, with about 22 wet days.
When is the sea warm enough to swim in Antigua?
all year, when the sea averages 21°C or more.
How we measured this
Daily averages from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain.
Going to Antigua?
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