Weather in Costa Adeje in August

How August compares

August is the 1st warmest month of the year in Costa Adeje. Within Spain it is 66th of 87 (Spain in August). Against London's average high of 21.4°C in August, Costa Adeje is 5.5°C warmer by day and 7.7°C warmer at night.

Daytime and night-time in August

The typical August day in Costa Adeje peaks at 26.9°C, but that is an average: the warmest 10% of days reach 30.8°C or more. About 73% of days top 25°C and 1 in 7 pass 30°C. Nights average 21.2°C; one night in ten drops to 18.9°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest August day here reached 36.4°C (2020-08-26) and the coldest night 16.5°C (2020-08-31).

Rain in August

Dry (3 rainy days or fewer): about 1 days with 1 mm or more, 3 mm in total. Year to year it varies a lot - the wettest August was 2015 with 45 mm, the driest 1992 with 0 mm. Humidity averages 67%.

Sea temperature in August

The sea averages 23.0°C - warm enough to swim (22°c+). Depending on the year it ranges from 22.4°C to 23.6°C. For the warmest sea here, come in September (23.7°C).

Sunshine and daylight

Around 11.2 hours of sunshine a day (estimated from cloud cover), 13.0 hours of daylight: the sun rises about 07:37 and sets about 20:46 local time in mid-August. Average cloud cover is 14%.

Is August a good time to visit Costa Adeje?

Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Costa Adeje on our scoring are July, August, September; months averaging 25°C or more: Jul, Aug, Sep.

Expect summer heat, with little cooling after dark

August is Costa Adeje's warmest month, so choose it for dependable warmth rather than relief from the heat. Temperatures reach 25°C on 73% of days, while 14% reach 30°C: hot afternoons are part of the picture, but that higher heat is not the daily norm. Plan more active time for the morning and leave room for shade around midday. Light, loose clothing makes sense, and with humidity at 67%, breathable fabrics may feel more comfortable than close-fitting layers. Evenings generally call for light clothing too. If you sleep best in a cool room, check the cooling arrangements before booking rather than relying on open windows.

Good swimming weather, with rain unlikely to disrupt plans

The sea is a strong reason to come in August. Its average temperature of 23°C makes swimming a reasonable part of your plans, rather than something reserved for a quick dip. Across years it ranges from 22°C to 24°C, so personal tolerance still matters. Rain is unlikely to shape your holiday, with about 0 rainy days, though that is not a guarantee of completely rain-free weather. Sunshine averages 11.2 hours within 13 hours of daylight, leaving plenty of scope to enjoy being outside without doing everything at midday. Pack sun protection and use shade breaks; the long sunny days are useful, but they also make it easy to spend too long exposed.