Weather in Costa Adeje in January

How January compares

January is the 12th warmest month of the year in Costa Adeje. Within Spain it is 20th of 87 (Spain in January). Against London's average high of 7.4°C in January, Costa Adeje is 11.1°C warmer by day and 11.7°C warmer at night.

Daytime and night-time in January

The typical January day in Costa Adeje peaks at 18.5°C, but that is an average: the warmest 10% of days reach 20.9°C or more. Roughly 1 in 500 days top 25°C. Nights average 13.9°C; one night in ten drops to 11.5°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest January day here reached 25.2°C (2018-01-02) and the coldest night 8.3°C (2019-01-20).

Rain in January

Some rain (4-8 rainy days): about 5 days with 1 mm or more, 27 mm in total. Year to year it varies a lot - the wettest January was 1997 with 87 mm, the driest 2013 with 0 mm. Humidity averages 72%.

Sea temperature in January

The sea averages 19.9°C - bracing (18-22°c). Depending on the year it ranges from 19.3°C to 20.7°C. For the warmest sea here, come in September (23.7°C).

Sunshine and daylight

Around 6.2 hours of sunshine a day (estimated from cloud cover), 10.4 hours of daylight: the sun rises about 08:00 and sets about 18:32 local time in mid-January. Average cloud cover is 40%.

Is January a good time to visit Costa Adeje?

January is not the strongest month here: mild days. The best months for Costa Adeje on our scoring are July, August, September; months averaging 25°C or more: Jul, Aug, Sep.

Comfortable for days outdoors, cooler after dark

Plan around mild afternoons, not strong midday heat. A T-shirt may be comfortable in the sunshine, but a light jumper is useful when sitting outside, especially later in the day. January is Costa Adeje's coolest month, and even the warmer days are not a reliable route to summer temperatures: the warmest 10% reach 20.9°C or more. At night, the coldest 10% fall to 11.5°C or lower, so bring trousers and a jacket for evenings rather than packing only shorts. This weather suits travellers who prefer being active without much heat. If your main aim is lying out in consistently hot conditions, January is a compromise.

Useful sunshine, with a catch for swimmers

There is about 6.2 hours of sunshine within 10.4 hours of daylight, giving you useful scope for outdoor plans without assuming clear skies all day. About 5 days have measurable rain, so keep plans flexible and pack a light waterproof. Rain need not dominate your decision, but a completely dry stay is not guaranteed. For beach time, separate sitting in the sunshine from getting into the water: the sea is bracing rather than comfortably warm. If you dislike cool water, make swimming optional rather than the focus of the trip. Keep outdoor meals flexible too, with a layer handy if sitting outside feels cool. Think of January as a chance for milder days outdoors, not dependable beach heat.