Chengdu enjoys a subtropical monsoon climate characterized by an early spring, hot summer, cool autumn and warm winter. The average annual temperature for the year is 16℃. The climate of Chengdu is mild and humid with distinct four seasons and plenty of rainfall. January is the coldest season when the average temperature is approximately 5 degrees Celsius, and July is the hottest when temperature can be almost unbearable. With the combination of humidity and surrounding mountains, Chengdu is almost always overcast/ the best time to visit is between March and June or between September and November.