The rains on Sardinia are generally not abundant and are mainly concentrated in the winter , they are intense and long-lasting . They are very poor in the Campidano and along the coasts , where they fall less than 400 mm , values comparable with those of the semi-arid areas , and are between 600-700 mm in the hilly inland areas and more generally on most of the areas of ' Island .
The greatest rainfall is reached into Gennargentu mountains , where precipitation may fall as snow in the winter season , exceeding 1000 mm . In the Western side of the Sardinia weather is more affected by ocean currents , where the rainfall , in fact, achieve or exceed 700-800 mm per year during the summer even though this area is amongst the driest island. Right in the summer rains may be missing for months , giving a pronounced dryness to the area.
The most frequent winds are strong and the Mistral , Sirocco and Libeccio that give rise to Winter rains and storms , while often in the summer make it very dry climate and encourage the spread of fire . In Winter the Scirocco brings bad weather (Southern Sardinia) , while the Mistral and the Libeccio encourage the rains on the West. The Mistral is also responsible for episodes of cold and winter snow , carrying with it the Arctic air that flows into the Mediterranean from the Rhone Valley .
In Summer the Sirocco brings air from the North African deserts hot and dry that often accompanies the Saharan dust and high temperatures .
Sardinia weather has a very mild climate with very hot summers and mild winters . Average annual temperatures are between 15 and 18 ° C. In summer temperatures exceeding 30 ° C. In Winter weather remain mild especially in the coast , and temperature can drop below 0 ° C on domestic sectors at high altitude.
Sardinia weather forecast: http://www.ilmeteo.it/sardegna