Antigua weather by month
Antigua is warmest in August (30°C average high) and coolest in February (27°C). For warm, mostly dry weather, go December to April. The sea is warm enough for easy swimming all year.
Warmest month
August
30°C
Coolest month
February
27°C
Wettest month
October
117 mm
Flight from London
8h
direct, estimated
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Antigua temperature by month
Tap a month for the detail and warmer alternatives.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 28°C | 24°C | 27°C | 43 mm |
| February | 27°C | 24°C | 27°C | 52 mm |
| March | 28°C | 24°C | 27°C | 47 mm |
| April | 28°C | 24°C | 28°C | 59 mm |
| May | 29°C | 25°C | 29°C | 68 mm |
| June | 30°C | 26°C | 29°C | 63 mm |
| July | 30°C | 26°C | 29°C | 83 mm |
| August | 30°C | 26°C | 30°C | 100 mm |
| September | 30°C | 26°C | 30°C | 114 mm |
| October | 30°C | 26°C | 30°C | 117 mm |
| November | 29°C | 25°C | 29°C | 101 mm |
| December | 28°C | 25°C | 28°C | 48 mm |
When to go to Antigua
What is the best month to visit Antigua for sun?
For warm, mostly dry days, go December to April, going by our 10-year averages.
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?
October, with about 117 mm of rain.
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. Rain is the average monthly total.
Going to Antigua?
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