Riddoch Bay Weather Forecast
- 16
- 24
Shower or two
- 10
- 19
Rain increasing
- 11
- 15
Showers easing
- 8
- 16
Shower or two
- 7
- 16
Shower or two
- 9
- 18
Shower or two
- 10
- 18
Possible shower
Today 23 Oct Mount Gambier
Partly cloudy. Medium chance of showers, most likely in the late morning and afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the morning then tending south to southwesterly 15 to 20 km/h in the late afternoon.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Variable about 10 knots becoming southwesterly 10 to 15 knots in the middle of the day.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A slow moving high pressure system in the Tasman Sea maintains a ridge across eastern parts of the state. A trough of low pressure over the far west is forecast to slowly move eastwards on Friday. Another trough and multiple cold fronts move over the state over the weekend. A ridge of high pressure moves into the west on Monday.
Riddoch Bay Temperature Statistics View More
October Temperature
Mount Gambier Airport (33 km)
Lowest 7 October, 2026
2.8 °CAverage October
14.7 °CHighest 19 October, 2026
28.9 °C
Climate (2021–2026)
Mount Gambier Airport (33 km)
Average Low 2021–2026
8.9 °CAverage 2021–2026
13.8 °CAverage High 2021–2026
20.1 °C