Riddoch Bay Weather Forecast
- 9
- 21
Rain developing
- 11
- 15
Rain easing
- 9
- 15
Shower or two
- 7
- 17
Possible shower
- 9
- 18
Cloudy
- 11
- 19
Cloudy
- 10
- 21
Possible shower
Today 24 Oct Mount Gambier
Partly cloudy. Very high chance of rain, most likely in the afternoon and evening. The chance of a thunderstorm in the evening. Light winds becoming southerly 15 to 25 km/h in the early afternoon then becoming light in the late evening.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Variable about 10 knots becoming east to southeasterly 10 to 15 knots in the middle of the day then turning southerly 15 to 20 knots in the early afternoon.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Southwesterly 3 metres.
- Weather
- Cloudy. Near 100% chance of rain. The chance of a thunderstorm north of Port MacDonnell late this afternoon and evening.
- Weather Situation
- A trough of low pressure that lies near the NT/WA border will combine with a trough and cold front further south to move over much of SA on Saturday, and over the far northeast on Sunday. A ridge of high pressure will then move into the west from late Sunday and persist over the rest of the state throughout next week.
Riddoch Bay Temperature Statistics View More
October Temperature
Mount Gambier Airport (33 km)
Lowest 7 October, 2026
2.8 °CAverage October
15.1 °CHighest 22 October, 2026
32.8 °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