Cape Kersaint Weather Forecast
- 13
- 19
Partly cloudy
- 11
- 20
Shower
- 12
- 20
Cloudy
- 12
- 20
Cloudy
- 11
- 20
Cloudy
- 12
- 22
Partly cloudy
- 12
- 30
Sunny
Today 21 Dec Kangaroo Island
Partly cloudy. Medium chance of showers, becoming less likely in the afternoon. The chance of a thunderstorm in the late morning and early afternoon. Winds west to northwesterly 25 to 35 km/h shifting southerly in the middle of the day then tending south to southwesterly 15 to 20 km/h in the late evening. Daytime maximum temperatures in the low 20s.
South Central Coastal Waters
- Wind
- Southeasterly 15 to 20 knots turning south to southwesterly 15 to 25 knots in the late morning and afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon.
- 1st Swell
- Southwesterly around 1 metre, increasing to 1 to 2 metres by early evening.
- Weather
- Partly cloudy. 60% chance of showers. The chance of a thunderstorm in the late morning and early afternoon.
- Weather Situation
- A broad trough of low pressure lingers over the east and northern parts of the State. A low pressure system lies south of the bight and moves east to combine with the trough early Sunday. The combined low pressure system and trough then moves east to clear SA by late Sunday. A high pressure ridge then extends over the west and south of the State behind the low pressure system during Sunday. The high pressure ridge extends across the entire State and Coastal Waters by late Sunday and persists from Monday to Thursday.
Cape Kersaint Temperature Statistics View More
December Temperature
Kingscote Airport (50km)
Lowest 7 December, 2025
3.8 °CAverage December
18 °CHighest 18 December, 2025
41 °C
Climate (2020–Present)
Kingscote Airport (50km)
Average Low 2020–2025
9.2 °CAverage 2020–2025
14.7 °CAverage High 2020–2025
21.1 °C