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Weather in Sardinia

Sardinia Weather

The island has a Mediterranean climate (Köppen: Csa) along the coasts, plains and low hills and a continental climate on the interior plateaus, valleys and mountain ranges. During the year there are approximately 135 days of sunshine, with a major concentration of rainfall in the winter and autumn, some heavy showers in the spring and snowfalls in the highlands. The average temperature is between 11 to 17 °C (52 to 63 °F), with mild winters and hot summers on the coasts ( 9 to 11 °C (48 to 52 °F) in January, 23 to 26 °C (73 to 79 °F) in July), and cold winters and cool summers on the mountains ( −2 to 4 °C (28 to 39 °F) in January, 16 to 20 °C (61 to 68 °F) in July). Rainfall has a Mediterranean distribution all over the island, with almost totally rainless summers and wet autumns, winters and springs. However, in summer, the rare rainfalls can be characterized by short but severe thunderstorms, which can cause flash floods. The climate is also heavily influenced by the vicinity of the Gulf of Genoa (barometric low) and the relative proximity of the Atlantic Ocean. Low pressures in autumn can generate the formation of the so-called Medicanes, extratropical cyclones which affected the Mediterranean basin. In 2013, the island was hit by several cyclones, included the Cyclone Cleopatra, which dumped almost 18 inches (450 mm) of rainfall within an hour and a half. Sardinia being relatively large and hilly, weather is not uniform; in particular the East is drier, but paradoxically it suffers the worst rainstorms : in Autumn 2009, it rained more than 200 mm (7.9 in) in a single day in Siniscola, and 19 November 2013, locations in Sardinia were reported to have received more than 431 mm (17 inches) within two hours. The Western coast has a higher distribution of rainfalls even for modest elevations (for instance Iglesias, elevation 200 m (656 ft), average annual precipitation 815 mm (32.1 in)). The driest part of the island is the coast of Cagliari gulf, with less than 450 mm (17.7 in) per year, the minimum is at Capo Carbonara at the extreme south-east of the island 381 mm (15.0 in), and the wettest is the top of the Gennargentu mountain with almost 1,500 mm (59.1 in) per year. The average for the entire island is about 800 mm (31.5 in) per year, which is more than enough for the needs of the population and vegetation. The Mistral from the northwest is the dominant wind on and off throughout the year, though it is most prevalent in winter and spring. It can blow quite strongly, but it is usually dry and cool and makes for a sailor's paradise.