Hengyang is warmest in August, averaging 33° by day and 24° at night. The wettest month is May with 279 mm, and the year brings about 1737 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 12° | 1° | 84 mm | 10.5 h | Mild |
| February | 14° | 4° | 129 mm | 11.1 h | Mild |
| March | 21° | 9° | 161 mm | 11.8 h | Mild |
| April | 24° | 14° | 243 mm | 12.6 h | Rainy season |
| May | 28° | 18° | 279 mm | 13.3 h | Rainy season |
| June | 31° | 23° | 261 mm | 13.7 h | Rainy season |
| July | 33° | 25° | 155 mm | 13.5 h | Mild |
| August | 33° | 24° | 118 mm | 13.0 h | Mild |
| September | 32° | 20° | 108 mm | 12.1 h | Mild |
| October | 26° | 15° | 84 mm | 11.3 h | Beach weather |
| November | 21° | 9° | 81 mm | 10.6 h | Sightseeing |
| December | 13° | 3° | 34 mm | 10.3 h | Mild |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: October — highs around 26°, nights no colder than 15°, and at most 84 mm of rain in a month.
Walking the city: November — highs of 21–21° and no more than 81 mm of rain a month.
Wet season: April, May and June — up to 279 mm in a single month.