Huainan is warmest in August, averaging 34° by day and 24° at night. The wettest month is July with 332 mm, and the year brings about 1149 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 9° | -2° | 50 mm | 10.1 h | Cool |
| February | 11° | -0° | 50 mm | 10.8 h | Cool |
| March | 18° | 5° | 93 mm | 11.8 h | Sightseeing |
| April | 23° | 10° | 54 mm | 12.8 h | Sightseeing |
| May | 29° | 16° | 78 mm | 13.7 h | Beach weather |
| June | 33° | 21° | 183 mm | 14.1 h | Rainy season |
| July | 32° | 25° | 332 mm | 13.9 h | Rainy season |
| August | 34° | 24° | 93 mm | 13.2 h | Beach weather |
| September | 31° | 18° | 75 mm | 12.2 h | Beach weather |
| October | 23° | 12° | 71 mm | 11.2 h | Sightseeing |
| November | 18° | 6° | 51 mm | 10.3 h | Sightseeing |
| December | 10° | -1° | 19 mm | 9.9 h | Cool |
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: May, August and September — highs around 31°, nights no colder than 16°, and at most 93 mm of rain in a month.
Walking the city: March, April, October and November — highs of 18–23° and no more than 93 mm of rain a month.
Wet season: June and July — up to 332 mm in a single month.