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Suzhou Weather by Month
Average temperatures, rainfall and humidity for Suzhou, China, month by month, built from OpenWeather's historical records. Use it to see what a typical Suzhou month looks like before you travel — then check the live Suzhou forecast for the days ahead.
Warmest month
July
33°C average high
Coolest month
January
-2°C average low
Wettest month
July
130 mm of rain
Driest month
January
18 mm of rain
Average temperature and rainfall in Suzhou by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 8°C | -2°C | -20°C / 20°C | 18 mm | 66% | 11 km/h |
| February | 10°C | 0°C | -14°C / 27°C | 36 mm | 66% | 13 km/h |
| March | 17°C | 6°C | -6°C / 34°C | 42 mm | 64% | 13 km/h |
| April | 22°C | 11°C | -2°C / 34°C | 50 mm | 65% | 14 km/h |
| May | 28°C | 17°C | 6°C / 40°C | 53 mm | 60% | 13 km/h |
| June | 32°C | 22°C | 12°C / 41°C | 90 mm | 64% | 13 km/h |
| July | 33°C | 24°C | 16°C / 41°C | 130 mm | 77% | 12 km/h |
| August | 32°C | 23°C | 14°C / 39°C | 95 mm | 80% | 11 km/h |
| September | 27°C | 19°C | 9°C / 35°C | 71 mm | 77% | 11 km/h |
| October | 22°C | 13°C | -1°C / 39°C | 55 mm | 66% | 11 km/h |
| November | 15°C | 7°C | -14°C / 30°C | 35 mm | 64% | 11 km/h |
| December | 9°C | 0°C | -13°C / 24°C | 19 mm | 61% | 11 km/h |
Best time to visit Suzhou
The most comfortable time to visit Suzhou is generally April to May and October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 691 mm a year.
Travellers who prefer heat should aim for July, when highs average 33°C. July is the month to avoid if rain would spoil your plans — it averages 130 mm, roughly 7× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Suzhou forecast for what is happening now.