American River - American River Boat Ramp Weather Forecast
- 7
- 16
Partly cloudy
- 11
- 14
Cloudy
- 10
- 15
Partly cloudy
- 10
- 17
Sunny
- 11
- 19
Mostly sunny
- 14
- 21
Shower or two
- 12
- 19
Shower or two
Today 8 Sep Kangaroo Island
Partly cloudy. Slight chance of a shower in the evening. Light winds becoming southerly 15 to 25 km/h in the early afternoon then increasing to 25 to 35 km/h in the late evening. Daytime maximum temperatures around 16.
Investigator Strait Coastal Waters
- Wind
- Variable about 10 knots becoming southerly 15 to 20 knots in the late afternoon.
- Seas
- Below 0.5 metres, increasing to around 1 metre by early evening.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system, centred southwest of WA, extends a ridge across the south of SA. The main high centre will move across waters to the south throughout the week to be centred to the east of SA from late Thursday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of the state at times.
American River - American River Boat Ramp 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