In the north, an oceanic climate prevails: cool summers and rainy winters (average rainfall 125–150 cm/50–60 in annually), with occasional snowfall. Central Portugal has hot summers and cool, rainy winters, with 50–75 cm (20–30 in) average annual rainfall. The southern climate is very dry, with rainfall not exceeding 50 cm (20 in) along the coast. In Lisbon, the average temperature is about 24°c (75°f) in July and 4°c (39°f) in January. The annual mean temperature in Portugal is 16°c (61°f).