The climate of Riga is in between maritime and humid continental. The coldest months are January and February, when the average temperature is -6C but temperatures as low as -20C to -25C can be observed almost every year on the coldest days. Due to the proximity of the sea autumn rains and fogs are frequent. Continuous snow cover may last eighty days. The summers in Riga are warm and humid with the average temperature of 18C, while the temperature on the hottest days usually exceed 30C.