Alghero has a typical Mediterranean climate with hot summers and mild winters. The best time to visit the city would be from May to the end of October, when the weather remains pleasant. January is also a good time to visit with shorter, but moderate, afternoons.
Summer:July is the hottest month in Alghero with an average temperature of 24 degree Celsius. However, the best month to swim in the sea is in August when the average sea temperature is 25 degree Celsius.
Winter:January is the coldest month at 10 degree Celsius and most sunshine hours occur in February. The wettest month is November with an average of 90mm of rain.