American River Weather Forecast
- 10
- 15
Partly cloudy
- 8
- 15
Becoming cloudy
- 11
- 14
Cloudy
- 10
- 15
Mostly sunny
- 10
- 17
Sunny
- 10
- 20
Mostly sunny
- 14
- 21
Possible shower
Today 7 Sep Kangaroo Island
Partly cloudy. Winds southerly 15 to 20 km/h tending southeasterly 15 to 25 km/h in the morning then becoming light in the evening. Daytime maximum temperatures around 16.
Investigator Strait Coastal Waters
- Wind
- South to southeasterly 10 to 15 knots tending east to southeasterly during the afternoon and evening. Winds reaching up to 20 knots through the Backstairs Passage in the late afternoon.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
- Weather
- Partly cloudy.
- Weather Situation
- The tail end of a cold front will move across southern coasts early Monday then a high pressure system centred southwest of WA will extend a ridge across the south of SA. The main high centre will move to the east of SA late Thursday and Friday. A trough over the interior of WA will remain stationary for most of the week.
American River Temperature Statistics View More
September Temperature
Kingscote Airport (24km)
Lowest 2 September, 2026
5.6 °CAverage September
13.1 °CHighest 1 September, 2026
21.3 °C
Climate (2021–2026)
Kingscote Airport (24km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
14.8 °CAverage High 2021–2026
21.1 °C