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Nantong Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Nantong.
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Climate overview of Nantong
Nantong, Jiangsu, China, sees big temperature differences between seasons, with July peaking at 33°C (91°F) and January dropping to 9°C (48°F).
The city has a wet climate, receiving around 1295 mm (51 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from June to August, with very warm summers and cold winters. June is the wettest month. The sunniest month is August, with 8.2 hours of sunshine per day on average.
Nantong Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Nantong - and find the best time to visit.
Monthly Temperature in Nantong
Visitors to Nantong can expect significant temperature changes throughout the year. On average, daytime temperatures range from a very warm 33°C (91°F) in July to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 26°C (79°F) in July to 1°C (34°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Nantong
Nantong is known for its substantial rain/snowfall, with annual precipitation reaching 1295 mm (51 in). The seasons in Nantong bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 239 mm (9.4 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 41 mm (1.6 in) over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Nantong Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Nantong
In Nantong, summer days are longer and more sunny, with daily sunshine hours peaking at 8.2 hours in August. As the darker season arrives, the brightness of the sun becomes less. February sees a soft sun for only 4.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Zhangjiagang, China (36 KM, 22 Miles).
Daily hours of sunshine
Data from: Zhangjiagang, China (36 KM, 22 Miles).
Humidity in Nantong by Month
The relative humidity is high throughout the year in Nantong.
The city experiences its highest humidity in June, reaching 79%. In February, the humidity drops to its lowest level at 74%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Zhangjiagang, China (36 KM, 22 Miles).
Best Time to Visit Nantong
Conditions in Nantong are generally most comfortable in April and October. They are typically least comfortable in January, July and August.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
mixed
Mar
good
Apr
excellent
May
very good
Jun
mixed
Jul
very wet
Aug
wet
Sep
very good
Oct
excellent
Nov
very good
Dec
mixed
- Best overall: April and October
- Warmest weather: July and August
- Most sunshine: August
- Wettest months: May, June, July and August, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from June to August, with very warm summers and cold winters
Frequently asked questions about the climate in Nantong
What is the best time to visit Nantong?
April and October typically offer the most optimal weather in Nantong. In contrast, January, July and August tend to have less optimal conditions. Nantong has a distinct rainy season from June to August, with very warm summers and cold winters.
What temperatures can I expect in Nantong?
Daytime highs range from 9°C (48°F) in January to 33°C (91°F) in July. Nighttime lows range from 1°C (34°F) to 26°C (79°F). Temperatures vary considerably through the year.
How much rain does Nantong get?
Annual rainfall is around 1295 mm (51 in). June is the wettest month with 239 mm (9.4 in), while December is the driest with 41 mm (1.6 in).
How sunny is Nantong?
Nantong receives around 1,955 hours of sunshine per year. August is the sunniest month with 245 hours, while February is the cloudiest with just 120 hours.
Nantong 3-Day Forecast
Nantong on the map
Nantong is highlighted - select any city to see its climate.
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The Li River: A Journey Through China’s Most Breathtaking Landscape
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