Click on a day for an hourly weather forecast
The weather in Henan in September is hot. The average temperatures are between 19°C and 30°C. Usually the days in September are hot while the nights are a bit cooler.
You can expect rain for roughly half of the month of September in Henan. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Henan in September 2025.
If you’re planning to visit Henan in the near future, we highly recommend that you review the 14 day weather forecast for Henan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 13° / 5° | 8 | 22 | 1 | 106 mm | Bad | Henan in January |
| February | 16° / 7° | 9 | 19 | 0 | 121 mm | Ok | Henan in February |
| March | 19° / 11° | 13 | 18 | 0 | 228 mm | Ok | Henan in March |
| April | 24° / 15° | 14 | 16 | 0 | 306 mm | Good | Henan in April |
| May | 27° / 18° | 17 | 14 | 0 | 464 mm | Good | Henan in May |
| June | 29° / 21° | 19 | 11 | 0 | 615 mm | Ok | Henan in June |
| July | 31° / 22° | 16 | 15 | 0 | 424 mm | Ok | Henan in July |
| August | 32° / 21° | 13 | 18 | 0 | 296 mm | Ok | Henan in August |
| September | 30° / 19° | 8 | 22 | 0 | 162 mm | Ok | Henan in September |
| October | 26° / 15° | 5 | 26 | 0 | 73 mm | Perfect | Henan in October |
| November | 21° / 11° | 6 | 24 | 0 | 116 mm | Good | Henan in November |
| December | 15° / 5° | 7 | 24 | 0 | 90 mm | Ok | Henan in December |