Western River Weather Forecast
- 7
- 19
Sunny
- 12
- 21
Sunny
- 14
- 19
Cloudy
- 10
- 14
Cloudy
- 7
- 17
Partly cloudy
- 9
- 21
Cloudy
- 12
- 22
Partly cloudy
Today 18 Sep Kangaroo Island
Sunny. Winds northwesterly 20 to 30 km/h. Daytime maximum temperatures around 20.
Investigator Strait Coastal Waters
- Wind
- North to northwesterly 10 to 15 knots, reaching up to 20 knots through the Backstairs Passage in the late morning and early afternoon. Winds decreasing to about 10 knots in the evening.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly below 1 metre.
- Weather
- Sunny.
- Weather Situation
- A strong high pressure system centred over Victoria will maintain a ridge across SA as it drifts slowly over NSW. A cold front will then approach from the west late Saturday and move across SA on Sunday, before another ridge pushes in behind the front. The associated high will then move eastwards across waters south from Monday.
Western River Temperature Statistics View More
September Temperature
Stenhouse Bay (44km)
Lowest 17 September, 2026
6.7 °CAverage September
13.9 °CHighest 12 September, 2026
25.2 °C
Climate (2021–2026)
Stenhouse Bay (44km)
Average Low 2021–2026
13.2 °CAverage 2021–2026
16.1 °CAverage High 2021–2026
20.5 °C