Climate in the Sierra de Grazalema Natural Park
The Sierra de Grazalema has a curious climatic claim to fame: the wettest place in Spain!
The reason for such high rainfall is the altitude of the mountain range that is struck by the humid currents of air arriving directly from the Atlantic Ocean. The temperature of these winds increases over the flat and warm plains before rising dramatically upon reaching the Sierra de Grazalema, cooling rapidly and producing rain.
In spite of the high rainfall, this does not mean that the Sierra de Grazalema Natural Park is permanently under cloud. Rains occur sporadically in autumn, winter and spring, whereas the summers are hot and dry, even resulting sometimes in drought. Even during the rainy season, there are days of warms sunshine, interspersed with intense showers.
A particularly cold winter’s night can bring temperatures of -5º and a hot summer’s day can reach 45º, but both have solutions: the former sat in front of a lit chimney, and the latter bathing in a swimming pool or river!
A typical yearly weather forecast would be:
January to May – Normally clear skies during the day with occasional cloud cover. Showers or storms at night accompanied by cold temperatures.
May to June – Day and night temperatures increase, skies clear and reduced probability of showers.
July and August – Hot and dry atmosphere, accompanied by warm winds.
September – May be dry and hot, although night time temperatures begin to drop. Possibility of storms.
October to December – Daytime and nightime temperatures continue to drop, with the increased possibility of clouds and rain.