Historical figures taken from Tenerife South Airport
Max.temperature in Tenerife in December is 22 degrees on average with 6 hours of sun a day.
Rainfall in Tenerife in December 17mm over 5 days. Average Humidity is 69%.
December is a mild month with temperatures are fairly stable, usually the day is mild but could reach temperatures of 21-22 °. The nights are cool, down 15-16 °. The daily temperature range (temperature difference between day and night) is relatively low, 6-7 ° .
Graph also shows low temperatures and humidity
In December in Los Cristianos the skies are often partly cloudy. There is always wind, usually a moderate or very faint breeze, but maybe a cooler breeze can reach 33-34 km / h. They are very rare windless days but it has to said that Los Cristianos and nearby coastal resorts could well be better weather that that around the airport which is very prone to wind.