Middle River Weather Forecast
- 12
- 17
Partly cloudy
- 9
- 18
Showers
- 12
- 16
Showers easing. Windy
- 9
- 16
Cloudy
- 8
- 17
Cloudy
- 9
- 16
Cloudy
- 11
- 17
Partly cloudy
Today 3 Sep Kangaroo Island
Partly cloudy. Winds west to southwesterly 15 to 25 km/h becoming light in the late afternoon. Daytime maximum temperatures around 16.
Investigator Strait Coastal Waters
- Wind
- West to southwesterly 10 to 15 knots tending west to northwesterly below 10 knots in the afternoon.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre around midday.
- 1st Swell
- West to southwesterly 1.5 to 2.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure ridge will remain over northern parts of SA, as a cold front slips across the southeast early today. The ridge will move to the east early Friday as a trough moves over SA during the day, followed by another cold front early Saturday. Another high pressure system will move across the state, behind the front, and will extend a ridge across central and eastern parts of SA into Sunday. A low pressure system is then expected to develop about the WA border and may extend a trough into far west SA late on Sunday.
Middle River Temperature Statistics View More
September Temperature
Kingscote Airport (41km)
Lowest 2 September, 2026
5.6 °CAverage September
12.2 °CHighest 1 September, 2026
21.3 °C
Climate (2021–2026)
Kingscote Airport (41km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
14.8 °CAverage High 2021–2026
21.1 °C