Weather in Antigua in December

How December compares

December is the 9th warmest month of the year in Antigua and ranks 29th of 134 destinations we compare for December - see where else is hot in December. Against London's average high of 7.7°C in December, Antigua is 19.1°C warmer by day and 22.0°C warmer at night.

Daytime and night-time in December

The typical December day in Antigua peaks at 26.8°C, but that is an average: the warmest 10% of days reach 27.8°C or more. About 99% of days top 25°C. Nights average 24.7°C; one night in ten drops to 23.6°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest December day here reached 29.7°C (2019-12-26) and the coldest night 22.3°C (1991-12-21).

Rain in December

Wet (more than 8 rainy days): about 14 days with 1 mm or more, 60 mm in total. Year to year it varies a lot - the wettest December was 1996 with 151 mm, the driest 2005 with 14 mm. Humidity averages 75%.

Sea temperature in December

The sea averages 27.3°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.9°C to 27.6°C. For the warmest sea here, come in September (28.9°C).

Sunshine and daylight

Around 7.0 hours of sunshine a day (estimated from cloud cover), 11.0 hours of daylight: the sun rises about 06:29 and sets about 17:36 local time in mid-December. Average cloud cover is 36%.

Is December a good time to visit Antigua?

It is a reasonable choice: hot days but expect showers. 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.

Warm days, with little cooling after dark

Antigua feels markedly warmer than London in December, where the average daytime high is 7.7°C. Pack mainly light, breathable clothing: Antigua's average night-time low is 25°C, so evenings offer little relief from the warmth. Humidity averages 75%, which can make the air feel sticky even when the temperature does not look especially high. Loose clothes and a relaxed pace around midday make more sense than a tightly packed outdoor schedule. This suits travellers who want consistently warm days without chasing fierce heat. If you depend on cool evenings for comfortable sleep, bear that in mind when choosing your room.

Allow for rain without writing off outdoor time

December is a wet month, but that does not make it a poor choice for spending time outside. There are about 7 hours of sunshine within 11 hours of daylight, alongside the risk of rain. The useful judgement is to expect both, rather than build the trip around uninterrupted sunshine. Keep swimming and other outdoor plans movable, and pack a light waterproof that will not feel too heavy in humid weather. The monthly figures do not tell you when rain will fall or how long it will last, so do not assume it will conveniently avoid your plans. December suits flexibility better than a fixed outdoor timetable.