Weather in Aruba in August

How August compares

August is the 2nd warmest month of the year in Aruba and ranks 60th of 134 destinations we compare for August - see where else is hot in August. Against London's average high of 21.4°C in August, Aruba is 7.7°C warmer by day and 13.3°C warmer at night.

Daytime and night-time in August

The typical August day in Aruba peaks at 29.1°C, but that is an average: the warmest 10% of days reach 30.6°C or more. About 100% of days top 25°C and 1 in 7 pass 30°C. Nights average 26.8°C; one night in ten drops to 25.9°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest August day here reached 33.8°C (2019-08-29) and the coldest night 24.5°C (2008-08-25).

Rain in August

Wet (more than 8 rainy days): about 8 days with 1 mm or more, 28 mm in total. Year to year it varies a lot - the wettest August was 1995 with 104 mm, the driest 2015 with 2 mm. Humidity averages 81%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in August

The sea averages 27.8°C - warm enough to swim (22°c+). Depending on the year it ranges from 27.0°C to 28.4°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), 12.4 hours of daylight: the sun rises about 06:28 and sets about 19:01 local time in mid-August. Average cloud cover is 51%.

Is August a good time to visit Aruba?

Yes - it is one of the better months: hot days, manageable rain. 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.

Hot days, with little relief at night

The daytime average is not the whole story: nights average 27°C and humidity is 81%, so comfort matters as much as the headline temperature. Air conditioning is a sensible priority when choosing accommodation, especially if warm bedrooms disturb your sleep. Pack loose, lightweight clothing and plan more active outings away from midday, leaving room for shade and breaks. Days reach 30°C on 14% of occasions, so that level of heat is possible rather than the daily norm. August suits travellers happy to take things slowly in the heat; if you prefer a noticeably cooler evening for walking or eating outside, it is a less comfortable match.

Swimming weather, but allow for rain and cloud

Sea temperatures average 28°C, making August a straightforward choice if swimming is central to your holiday. Rain is the compromise: about 8 days have measurable rainfall, so keep outdoor plans flexible rather than expecting an entirely dry stay. That figure does not tell you how long rain lasts on any particular day, so it is not a reason to write off whole days either. Sunshine averages about 6.1 hours within 12.4 hours of daylight, which means long days should not be confused with constant clear skies. Pack a light rain layer alongside swimwear and sun protection. This is a better fit for flexible plans than for a holiday that depends on uninterrupted sunshine.