Riddoch Bay Weather Forecast
- 7
- 15
Showers
- 8
- 14
Showers
- 9
- 16
Shower or two
- 9
- 16
Shower or two clearing
- 5
- 14
Cloudy
- 7
- 16
Partly cloudy
- 6
- 17
Partly cloudy
Today 11 Aug Mount Gambier
Cloudy. Very high chance of showers. Winds northwesterly 20 to 25 km/h tending northerly in the evening.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Northwesterly 20 to 25 knots, reaching up to 30 knots south of Beachport in the evening. Winds turning westerly in the late evening.
- Seas
- 2.5 to 3 metres.
- 1st Swell
- Southwesterly 3 metres, increasing to 3 to 4 metres south of Port MacDonnell.
- Weather
- Cloudy. 95% chance of showers. The chance of a thunderstorm north of Port MacDonnell in the evening.
- Weather Situation
- A cold front crossing the western parts of SA will continue moving eastwards and cross the rest of the state overnight into the early parts of Wednesday. A ridge of high pressure will then push into SA from the west throughout Wednesday, with the associated high moving over SA on Thursday. The high then gradually drifts southwards to be located in vicinity of Tasmania over the weekend, as it continues extending a ridge across SA.
Riddoch Bay Temperature Statistics View More
August Temperature
Mount Gambier Airport (33km)
Lowest 1 August, 2026
0.3 °CAverage August
9.7 °CHighest 2 August, 2026
15.7 °C
Climate (2021–2026)
Mount Gambier Airport (33km)
Average Low 2021–2026
8.9 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20.1 °C