Tenerife weather January
It’s generally a sunny month in both north and south coasts Tenerife with daytime shade temperatures in the south falling between 21-23C and in the north 18-22C. Out of the sun it can feel cooler, especially in areas which are more affected by breeze; south and south east.
There will be cloudy spells and snow usually falls at some point. However, considering the Canary Islands are in the northern hemisphere and it is the depths of winter, January weather is excellent by comparison with the rest of Europe. Between January and April it can be cool at night, so long sleeves are sensible. On the other hand, some locals wear next to nothing at the all night carnival street parties in February-March.