Click on a day for an hourly weather forecast
The weather in Katherine in September is hot. The average temperatures are between 21°C and 36°C.
You can expect a few rainy days in Katherine 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 Katherine in September 2025.
If you’re planning to visit Katherine in the near future, we highly recommend that you review the 14 day weather forecast for Katherine before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 33° / 25° | 14 | 17 | 0 | 403 mm | Ok | Katherine in January |
| February | 33° / 24° | 13 | 15 | 0 | 340 mm | Ok | Katherine in February |
| March | 33° / 24° | 9 | 22 | 0 | 184 mm | Ok | Katherine in March |
| April | 32° / 22° | 3 | 28 | 0 | 64 mm | Good | Katherine in April |
| May | 30° / 19° | 1 | 30 | 0 | 22 mm | Good | Katherine in May |
| June | 28° / 17° | 0 | 30 | 0 | 2 mm | Perfect | Katherine in June |
| July | 29° / 16° | 0 | 31 | 0 | 2 mm | Good | Katherine in July |
| August | 32° / 17° | 0 | 31 | 0 | 0 mm | Good | Katherine in August |
| September | 36° / 21° | 1 | 29 | 0 | 27 mm | Ok | Katherine in September |
| October | 37° / 24° | 1 | 30 | 0 | 55 mm | Ok | Katherine in October |
| November | 37° / 26° | 3 | 27 | 0 | 119 mm | Ok | Katherine in November |
| December | 35° / 26° | 11 | 20 | 0 | 342 mm | Bad | Katherine in December |