Climate Insights for Hengyang

The climate in Hengyang is warm and mild. The average annual temperature is 20°C and approximately 1570mm of precipitation falls per year. Hengyang receives a notable amount of rainfall throughout the year, including during its driest month. Hengyang is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, December, February, when temperatures can drop to 4°C. Light snow can occur between January and December.

Temperatures in Hengyang vary considerably across the year, with a 31°C difference between the coldest and warmest months. August is the hottest month, with daytime highs reaching 35°C and an average of 31°C. January is the coolest month, with minimum temperatures around 4°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Hengyang is a fairly wet location, receiving approximately 1570mm of precipitation annually, which averages out to around 131mm per month. The wettest month is June, averaging 281mm of rainfall. May and April also tend to see above-average precipitation. The driest month is December, with just 37mm. That's 244mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 7cm annually. January is the snowiest month with approximately 3cm.

Hengyang is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently summer in Hengyang, which began on June 21, 2026. Hengyang is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 35°C, while the coldest stretch bottoms out in January near 4°C. Autumn is next, beginning on September 23, 2026 (3 days from now).

The best time to visit Hengyang is during October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 72mm per month. By contrast, August can be uncomfortably hot with highs reaching 35°C, while January is the coldest period with lows dropping to 4°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Hengyang based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.