Siyang Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Siyang.
Climate overview of Siyang
The climate in Siyang, Jiangsu, China, is marked by large temperature swings across the seasons, ranging from 32°C (90°F) in July to 7°C (45°F) in January.
The city has a wet climate, receiving around 1018 mm (40 in) of rain/snowfall per year. Despite the high annual total, it has a distinct dry season from December to February, with very warm summers and cold winters. July is the wettest month.
Siyang Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Siyang - and find the best time to visit.
Monthly Temperature in Siyang
In Siyang, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a chilly 7°C (45°F) in January.
Nighttime temperatures range from 25°C (77°F) in July to -2°C (28°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Siyang
Siyang experiences significant rain/snowfall throughout the year, averaging 1018 mm (40 in) of precipitation annually. The seasons in Siyang bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 243 mm (9.6 in) of precipitation. This rainfall is distributed across 14 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 25 mm (1 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Siyang Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Siyang
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, September and October
- Warmest weather: July and August
- Fewer rainy days: January, February, March, November and December
- Wettest months: June, July and August, when rainfall is highest.
- Seasonal pattern: A distinct dry season from December to February, with very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Siyang
What is the best time to visit Siyang?
April, May, September and October typically offer the most optimal weather in Siyang. In contrast, February and July tend to have less optimal conditions. Siyang has a distinct dry season from December to February, with very warm summers and cold winters.
What temperatures can I expect in Siyang?
Daytime highs range from 7°C (45°F) in January to 32°C (90°F) in July. Nighttime lows range from -2°C (28°F) to 25°C (77°F). Temperatures vary considerably through the year.
How much rain does Siyang get?
Annual rainfall is around 1018 mm (40 in). July is the wettest month with 243 mm (9.6 in), while December is the driest with 25 mm (1 in).
Siyang 3-Day Forecast
Siyang on the map
Siyang is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Hangzhou
34°C (93°F) Guangzhou34°C (93°F) Shanghai32°C (90°F) Xi'an
33°C (91°F) Beijing32°C (90°F) Shenzhen32°C (90°F) Chengdu31°C (88°F) Qingdao29°C (84°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The Li River: A Journey Through China’s Most Breathtaking Landscape
Explore the Li River, China's breathtaking landscape with majestic mountains, serene waters, and picturesque views. A must-see for every traveler.
Go to China's Zhangjiajie National Park with the highest, the fastest, largest-loaded outdoor elevator in the world
You won't find this unique landscape anywhere else in the world. Thousands of floating mountains overgrown with trees at the top dominate this fairy tale landscape.
Go to Xinjiang in China
In Xinjiang you get to see a mix of East and Central Asia. An experience that you might want to add to your bucket list. You can travel through the province as if you are following an ancient silk route.
Mount Kailash
The best time for a Kailash tour/trekking is from mid-May to mid-October when the temperature is most pleasant. It is warm, dry and sunny in that period.