Weather in Aruba in December

How December compares

December is the 9th warmest month of the year in Aruba and ranks 23rd 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, Aruba is 19.7°C warmer by day and 22.8°C warmer at night.

Daytime and night-time in December

The typical December day in Aruba peaks at 27.4°C, but that is an average: the warmest 10% of days reach 28.4°C or more. About 100% of days top 25°C and 1 in 45 pass 30°C. Nights average 25.5°C; one night in ten drops to 24.4°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest December day here reached 31.5°C (2019-12-26) and the coldest night 22.8°C (1999-12-27).

Rain in December

Wet (more than 8 rainy days): about 15 days with 1 mm or more, 65 mm in total. Year to year it varies a lot - the wettest December was 2011 with 199 mm, the driest 1997 with 2 mm. Humidity averages 79%.

Sea temperature in December

The sea averages 27.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.3°C to 27.8°C. For the warmest sea here, come in September (28.5°C).

Sunshine and daylight

Around 6.1 hours of sunshine a day (estimated from cloud cover), 11.3 hours of daylight: the sun rises about 06:53 and sets about 18:17 local time in mid-December. Average cloud cover is 46%.

Is December a good time to visit Aruba?

It is a reasonable choice: hot days but expect showers. The best months for Aruba on our scoring are February, March, June; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Warm enough for swimming, humid enough to feel sticky

December brings reliable warmth without daytime temperatures routinely reaching 30°C. Nights average 25.5°C, so evenings offer little cooling down: pack light, breathable clothes rather than treating sunset as jumper weather. Humidity averages 79%, which can make the heat feel sticky, particularly if you are active. Keep strenuous plans away from midday and choose accommodation where you can cool down comfortably. The sea averages 27.2°C, making swimming a straightforward part of the holiday rather than something to brace yourself for. This suits travellers who want warmth in and out of the water, but less so anyone who needs crisp evenings to sleep comfortably.

Plan around rain, not an entirely washed-out holiday

About 15 days have measurable rain, so a completely dry stay is not a sensible expectation. That does not mean those days are wet throughout, but the figures do not tell you when showers will arrive or how long they will last. Sunshine averages 6.1 hours within 11.3 hours of daylight, leaving scope for time outdoors without promising uninterrupted blue skies. Pack a light waterproof and keep weather-sensitive plans flexible rather than filling every day with fixed outdoor commitments. December makes sense if warmth matters more than staying dry; if rain would spoil the trip for you, consider a better-rated month instead.