Jiangmen Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Jiangmen.
Climate overview of Jiangmen
Temperatures in Jiangmen, Guangdong, China, vary greatly throughout the year. July is the hottest month at 34°C (93°F), while January is the coldest at 20°C (68°F).
The city has a wet climate, receiving around 1835 mm (72 in) of rainfall per year. Despite the high annual total, it has distinct dry (November to January) and wet (April to September) seasons, with very warm summers and pleasant winters. June is the wettest month. The most sunshine falls in July, with an average of 6.7 hours of daily sunshine.
Jiangmen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jiangmen - and find the best time to visit.
Monthly Temperature in Jiangmen
The climate in Jiangmen is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 34°C (93°F) in July to a pleasant 20°C (68°F) in January.
Nighttime temperatures range from 27°C (81°F) in July to 12°C (54°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Jiangmen
Jiangmen has a notably wet climate with abundant precipitation, recording 1835 mm (72 in) of rainfall per year. The seasons in Jiangmen bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 319 mm (13 in) of precipitation. This rainfall is distributed across 20 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 36 mm (1.4 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Jiangmen 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 Jiangmen
In Jiangmen, summer days are longer and more sunny, with daily sunshine hours peaking at 6.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. March sees a soft sun for only 2.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Jiangmen by Month
The relative humidity is high throughout the year in Jiangmen.
The city experiences its highest humidity in April, reaching 84%. In November, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Jiangmen
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, November and December
- Warmest weather: June, July, August and September
- Most sunshine: July
- Fewest rainy days: January, November and December
- Wettest months: April, May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to January) and wet (April to September) seasons, with very warm summers and pleasant winters
Frequently asked questions about the climate in Jiangmen
What is the best time to visit Jiangmen?
January, February, March, November and December typically offer the most optimal weather in Jiangmen. In contrast, May, June, July, August and September tend to have less optimal conditions. Jiangmen has distinct dry (November to January) and wet (April to September) seasons, with very warm summers and pleasant winters.
What temperatures can I expect in Jiangmen?
Daytime highs range from 20°C (68°F) in January to 34°C (93°F) in July. Nighttime lows range from 12°C (54°F) to 27°C (81°F). Temperatures vary considerably through the year.
How much rain does Jiangmen get?
Annual rainfall is around 1835 mm (72 in). June is the wettest month with 319 mm (13 in), while December is the driest with 36 mm (1.4 in).
How sunny is Jiangmen?
Jiangmen receives around 1,629 hours of sunshine per year. July is the sunniest month with 201 hours, while March is the cloudiest with just 61 hours.
Jiangmen 3-Day Forecast
Jiangmen on the map
Jiangmen 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) 
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