Hengyang Weather in September

What's the weather like in Hengyang (Hunan) in September 2025?

The climate in Hengyang during September can be summarized as hot, humid and reasonably dry.

September is in the fall / autumn in Hengyang and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 21°C (70°F) is normal.

Hengyang weather averages (imperial / metric)
Daytime temperature	28.9°C 83.9°F
Nightly temperature	21°C 69.7°F
Average temperature	24.9°C 76.8°F
Daily sunshine	6.3 hrs
Avg rainfall	56 mm 2.2 ins
Rainy days	9 days
Sea temperature	26.3°C 79.4°F
Humidity	76%
Windspeed	7.6kph 5 mph

On average September is the 2nd driest month of the year in Hengyang with around 56mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.3 hours of sunshine per day.

September temperatures in Hengyang

Hengyang average temperature in September

September rainfall

September hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Hengyang in September 2025.