Click on a day for an hourly weather forecast
The temperatures in Mount Gambier in October are quite cold with temperatures between 9°C and 18°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mount Gambier during the month of October. 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 Mount Gambier in October 2025.
If you’re planning to visit Mount Gambier in the near future, we highly recommend that you review the 14 day weather forecast for Mount Gambier before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 25° / 14° | 2 | 29 | 0 | 44 mm | Perfect | Mount Gambier in January |
| February | 24° / 14° | 1 | 27 | 0 | 37 mm | Perfect | Mount Gambier in February |
| March | 22° / 13° | 2 | 29 | 0 | 52 mm | Good | Mount Gambier in March |
| April | 19° / 12° | 3 | 27 | 0 | 62 mm | Good | Mount Gambier in April |
| May | 16° / 10° | 4 | 27 | 0 | 97 mm | Good | Mount Gambier in May |
| June | 14° / 8° | 5 | 25 | 0 | 106 mm | Good | Mount Gambier in June |
| July | 13° / 7° | 6 | 25 | 0 | 126 mm | Ok | Mount Gambier in July |
| August | 14° / 7° | 7 | 24 | 0 | 138 mm | Ok | Mount Gambier in August |
| September | 15° / 8° | 5 | 25 | 0 | 97 mm | Good | Mount Gambier in September |
| October | 18° / 9° | 3 | 28 | 0 | 70 mm | Good | Mount Gambier in October |
| November | 20° / 10° | 3 | 27 | 0 | 62 mm | Good | Mount Gambier in November |
| December | 22° / 12° | 3 | 28 | 0 | 58 mm | Good | Mount Gambier in December |