In Cagliari, the capital of Sardinia, the climate is Mediterranean, with mild, rainy winters and hot, sunny summers.
The daily average temperature ranges from about 10 °C (50 °F) in January and February to about 25 °C (77 °F) in July and August. During winter, it is rarely very cold, however, there may be a few cold days, with highs around 10 °C (50 °F) and lows around freezing, or even a few degrees below. Snow is very rare: for example, it snowed in January 1985 and January 1993.
In summer, the hottest days occur when the southern wind (scirocco) blows from Africa: in these cases, it is possible for the temperature to reach or exceed 40 °C (104 °F).
Here are the average temperatures.
Cagliari - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)667912161920171497
Max (°C)141517192327303127231815
Min (°F)434345485461666863574845
Max (°F)575963667381868881736459

The rainfall is not abundant, in fact it slightly exceeds 400 millimeters (16 inches) per year; this happens because weather disturbances pass quickly and are soon replaced by the mistral, the northwest wind blowing from France, fresh and dry. Here is the average precipitation.
Cagliari - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)45554535251031030555555425
Prec.(in)1.82.21.81.410.40.10.41.22.22.22.216.7
Days88764211468862

Cagliari

The sea is warm enough for swimming from July to September, whereas in June and October it is quite cool. Here the temperature of the sea.
Cagliari - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)151414151721242524211816
Temp (°F)595757596370757775706461

The amount of sunshine in Cagliari is very good in summer, when clear skies prevail; in winter, there is an alternation between sunny periods with periods of bad weather, with rain, wind and thunderstorms. On average, there are 4 hours of sunshine per day in December and January, and 11 hours in July.
Cagliari - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours456791011108654

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