The climate of Macau is moderate to hot, with an average annual temperature of just over 200 C (680 F) and a yearly mean variation between 160 C (500 F) and 250 C (770 F). The humidity is high with an average range between 75% and 90%. Rainfall is also high with the yearly total between 40 and 80ins. The best season is autumn (October-December) when days are sunny and warm and the humidity low. Winter (January-March) is cold but sunny. In April, the humidity starts to build up and from May to September the climate is hot and humid with rain and occasional tropical storms (typhoons).