Weather in Antigua in March

How March compares

March is the 10th warmest month of the year in Antigua and ranks 34th of 134 destinations we compare for March - see where else is hot in March. Against London's average high of 10.5°C in March, Antigua is 16.2°C warmer by day and 20.7°C warmer at night.

Daytime and night-time in March

The typical March day in Antigua peaks at 26.7°C, but that is an average: the warmest 10% of days reach 27.9°C or more. About 98% of days top 25°C. Nights average 24.0°C; one night in ten drops to 23.1°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest March day here reached 29.4°C (2017-03-28) and the coldest night 20.9°C (2020-03-16).

Rain in March

Some rain (4-8 rainy days): about 8 days with 1 mm or more, 24 mm in total. Year to year it varies a lot - the wettest March was 2020 with 57 mm, the driest 2014 with 6 mm. Humidity averages 72%.

Sea temperature in March

The sea averages 26.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 25.7°C to 26.6°C. For the warmest sea here, come in September (28.9°C).

Sunshine and daylight

Around 7.7 hours of sunshine a day (estimated from cloud cover), 11.9 hours of daylight: the sun rises about 06:15 and sets about 18:17 local time in mid-March. Average cloud cover is 35%.

Is March a good time to visit Antigua?

Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Antigua on our scoring are March, February, April; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Hot enough for a beach holiday, without fierce temperatures

Antigua’s average March daytime high is 16.2°C above London’s, so this is a substantial change from home rather than a modest improvement. Temperatures reach 25°C on 98% of days, while days reaching 30°C account for 0%. That makes March a sensible choice if you want reliable heat but dislike very high temperatures. Humidity averages 72%, however, so walking around can still feel sticky, particularly at midday. Pack light, breathable clothing and leave room for shaded breaks rather than planning to stay active throughout the hottest part of the day. Evenings remain warm, so do not expect the temperature to fall sharply once daylight fades.

Plenty of sunshine, but keep plans flexible

March brings about 7.7 hours of sunshine within 11.9 hours of daylight, giving you plenty of scope for swimming and time outdoors without suggesting clear skies all day. There are about 8 rainy days, so a completely dry stay is not something to bank on. Keep outdoor plans flexible and pack a light waterproof that will not feel cumbersome in the heat. The sea is warm enough for swimming, making March well suited to travellers who want to spend time in the water rather than simply sit beside it. Sun protection and shade still matter: comfortable swimming temperatures do not make prolonged exposure to the sun a good idea.