Suzhou Weather & Climate: Best Time to Visit

Visitors to Suzhou can expect significant temperature changes throughout the year. 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 chilly 9°C (48°F).

At night, temperatures range from around 26°C (79°F) in July to 2°C (36°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Suzhou is known for its substantial rain/snowfall, with annual precipitation reaching 1424 mm (56 in). Suzhou can be quite wet during June, receiving approximately 287 mm (11 in) of precipitation over 14 rainy days.

In contrast, during the driest month (December), you will experience much drier conditions, with 51 mm (2 in) of precipitation spread across 11 rainy days days. For more details, please visit our Suzhou Precipitation page.

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

The average number of days each month with precipitation

Suzhou can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.0 hours of sunshine daily. In contrast, the city experiences much darker days in February, with only 3.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Suzhou.

The city experiences its highest humidity in February, reaching 78%. In July, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year