Tenerife belongs to the Canary archipelago, Spain`s subtropical Atlantic climate that attracts tourists all year round.
The island is blessed with an eternal spring thanks to its levels of rainfall and temperatures, which vary between an average 17 C in winter and 26 C in summer. Despite its relatively small size – just 2000 sq. km – this island enjoys a number of microclimates that depend essentially on the altitude and orientation. The Teide is known as the “roof Spain`s “, with 3870 metres forming an orographic screen effect – a barrier that shields the island from rains and trade winds that blow in from the north. As a result, the northern side of the island and the site of the principal centres of population tends to be wetter, accumulating the highest levels of rainfall and enjoying fewer hours of sunshine. In contrast, the southern side, protected by the vast Teide and scattered with many of the island`s modern tourist resorts, is much sunnier and drier, with mainly clear skies and only gentle breezes.
The gentle, humid trade winds that blow in from the north-east tend to form what is known as a a “a sea of clouds” at an altitude of around 1000 m., covering the lower parts of the island with clouds and leading the frequent rainfalls later on in the day. This means that the in north of the island the skies tend to be cloudy for at least part of the day, whilst they are perfectly clear on the southern side. This phenomenon is particularly common between May and early September, when the Azores anticyclone settles over the island. Rainfall is more frequent between November and March. Normally of a moderate nature, in recent years there have also been several incidents of torrential downpours. Snow usually falls on the peaks of Teide during the early months of year.
Another meteorological phenomenon that that occurs on the island is the so-called “southern wearther”, cause by the easterly winds that bring calimas, the local name for a thick haze of dust from the Sahara Desert that drastically reduce both humidity levels and visibility. This phenomenon particularly affects the eastern islands named Chinijos, Fuerteventura, Lanzarote and Gran Canaria.