Nanjing has a humid subtropical climate with plenty of rainfall. The four seasons are distinct in Nanjing, with hot summers and cold winters. The average annual temperature is 16 °C.

• Spring (March-May): The weather warms up and it is humid, with changing temperatures.
• Summer (June-September): Even though rainfalls concentrate in June and July, the temperature easily reaches above 34 °C. The highest temperature is in July, hitting above 40 °C.
• Autumn (October-November): It is the best time of the year to visit Nanjing; with pleasant, cool and dry weather.
• Winter (December-February): January is the coldest month with the low temperature dropping to -7 °C.