Nanjing Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to pleasant in Nanjing. Average daytime temperatures reach a very warm 33°C (91°F) in July. In January, the coolest month of the year, temperatures drop to a pleasant 19°C (66°F).

At night, temperatures range from around 25°C (77°F) in July to 9°C (48°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Nanjing has a relatively rainy climate with high precipitation levels, averaging 1748 mm (69 in) of rainfall annually. Nanjing can be quite wet during June, receiving approximately 293 mm (12 in) of precipitation over 18 rainy days.

In contrast, during the driest month (December), you will experience much drier conditions, with 53 mm (2.1 in) of precipitation spread across 8 rainy days days. For more details, please visit our Nanjing Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Nanjing can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.8 hours of sunshine daily. In contrast, the city experiences much darker days in February, with only 3.0 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Nanjing.

The city experiences its highest humidity in June, reaching 85%. In October, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year