Click on a day for an hourly weather forecast
The temperatures in Mandurah in September are usually low and can range between 12°C and 18°C.
You can expect about 3 to 8 days of rain in Mandurah during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Mandurah in September 2025.
If you’re planning to visit Mandurah in the near future, we highly recommend that you review the 14 day weather forecast for Mandurah before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 19° | 1 | 30 | 0 | 28 mm | Perfect | Mandurah in January |
| February | 28° / 19° | 1 | 27 | 0 | 27 mm | Perfect | Mandurah in February |
| March | 26° / 18° | 1 | 30 | 0 | 23 mm | Perfect | Mandurah in March |
| April | 23° / 17° | 2 | 28 | 0 | 38 mm | Perfect | Mandurah in April |
| May | 20° / 14° | 4 | 27 | 0 | 111 mm | Good | Mandurah in May |
| June | 18° / 13° | 6 | 24 | 0 | 155 mm | Good | Mandurah in June |
| July | 17° / 12° | 8 | 23 | 0 | 184 mm | Ok | Mandurah in July |
| August | 17° / 12° | 7 | 24 | 0 | 165 mm | Ok | Mandurah in August |
| September | 18° / 12° | 5 | 25 | 0 | 104 mm | Good | Mandurah in September |
| October | 20° / 13° | 2 | 29 | 0 | 40 mm | Good | Mandurah in October |
| November | 23° / 15° | 2 | 28 | 0 | 42 mm | Perfect | Mandurah in November |
| December | 26° / 17° | 1 | 30 | 0 | 20 mm | Perfect | Mandurah in December |