Click on a day for an hourly weather forecast
The weather in Henderson in September is very hot. The average temperatures are between 24°C and 35°C, drinking water regularly is advisable.
You can expect a few rainy days in Henderson during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Henderson in September 2025.
If you’re planning to visit Henderson in the near future, we highly recommend that you review the 14 day weather forecast for Henderson before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 13° / 5° | 2 | 29 | 0 | 22 mm | Ok | Henderson in January |
| February | 16° / 7° | 2 | 27 | 0 | 23 mm | Good | Henderson in February |
| March | 21° / 11° | 1 | 30 | 0 | 15 mm | Good | Henderson in March |
| April | 25° / 14° | 0 | 30 | 0 | 6 mm | Perfect | Henderson in April |
| May | 30° / 18° | 1 | 30 | 0 | 6 mm | Good | Henderson in May |
| June | 37° / 24° | 0 | 30 | 0 | 2 mm | Ok | Henderson in June |
| July | 39° / 28° | 1 | 30 | 0 | 23 mm | Bad | Henderson in July |
| August | 39° / 27° | 1 | 30 | 0 | 21 mm | Bad | Henderson in August |
| September | 35° / 24° | 1 | 29 | 0 | 15 mm | Ok | Henderson in September |
| October | 26° / 16° | 1 | 30 | 0 | 15 mm | Perfect | Henderson in October |
| November | 19° / 10° | 0 | 30 | 0 | 13 mm | Good | Henderson in November |
| December | 13° / 5° | 1 | 30 | 0 | 27 mm | Ok | Henderson in December |