American River Weather Forecast
- 7
- 16
Cloudy
- 10
- 14
Cloudy
- 10
- 15
Partly cloudy
- 10
- 17
Sunny
- 11
- 19
Mostly sunny
- 14
- 21
Possible shower
- 12
- 20
Shower or two
Today 8 Sep Kangaroo Island
Cloudy. Slight chance of a shower. Winds southerly 25 to 35 km/h.
Investigator Strait Coastal Waters
- Wind
- Southerly 15 to 20 knots.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system centred south of WA extends a ridge across the south of SA. The main high centre will move eastwards during the week to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday.
American River Temperature Statistics View More
September Temperature
Kingscote Airport (24km)
Lowest 2 September, 2026
5.6 °CAverage September
12.8 °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