American River Weather Forecast
- 12
- 16
Showers easing. Windy
- 10
- 16
Cloudy
- 10
- 16
Partly cloudy
- 9
- 15
Partly cloudy
- 11
- 14
Partly cloudy
- 10
- 15
Mostly sunny
- 10
- 18
Mostly sunny
Today 5 Sep Kangaroo Island
Partly cloudy. High chance of showers, most likely in the morning and afternoon. Damaging winds possible. Winds northwesterly 30 to 45 km/h turning west to southwesterly 35 to 50 km/h during the day. Overnight temperatures falling to around 11 with daytime temperatures reaching between 14 and 17.
Investigator Strait Coastal Waters
- Wind
- West to northwesterly 20 to 30 knots, reaching up to 35 knots during the morning. Winds tending west to southwesterly 15 to 25 knots during the day.
- Seas
- 1 to 2 metres, increasing to 2 to 3 metres during the morning, then decreasing below 2 metres later in the evening.
- 1st Swell
- West to southwesterly 1 to 2 metres, increasing to 2 to 3 metres during the morning.
- Weather
- Partly cloudy. 80% chance of showers.
American River Temperature Statistics View More
September Temperature
Kingscote Airport (24km)
Lowest 2 September, 2026
5.6 °CAverage September
13.3 °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