Click on a day for an hourly weather forecast
The temperatures in Dunsborough in September are usually low and can range between 12°C and 16°C.
You can expect about 3 to 8 days of rain in Dunsborough 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 Dunsborough in September 2025.
If you’re planning to visit Dunsborough in the near future, we highly recommend that you review the 14 day weather forecast for Dunsborough before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 24° / 16° | 1 | 30 | 0 | 15 mm | Perfect | Dunsborough in January |
| February | 25° / 17° | 1 | 27 | 0 | 18 mm | Perfect | Dunsborough in February |
| March | 23° / 17° | 2 | 29 | 0 | 28 mm | Perfect | Dunsborough in March |
| April | 21° / 15° | 3 | 27 | 0 | 38 mm | Good | Dunsborough in April |
| May | 18° / 14° | 6 | 25 | 0 | 89 mm | Good | Dunsborough in May |
| June | 17° / 13° | 8 | 22 | 0 | 109 mm | Ok | Dunsborough in June |
| July | 16° / 12° | 10 | 21 | 0 | 130 mm | Ok | Dunsborough in July |
| August | 16° / 12° | 8 | 23 | 0 | 111 mm | Ok | Dunsborough in August |
| September | 16° / 12° | 6 | 24 | 0 | 71 mm | Good | Dunsborough in September |
| October | 18° / 12° | 4 | 27 | 0 | 36 mm | Good | Dunsborough in October |
| November | 20° / 14° | 3 | 27 | 0 | 26 mm | Good | Dunsborough in November |
| December | 23° / 15° | 2 | 30 | 0 | 12 mm | Perfect | Dunsborough in December |