Ballast Head Weather Forecast
- 13
- 20
Cloudy
- 12
- 18
Cloudy
- 12
- 19
Cloud clearing
- 13
- 25
Sunny
- 15
- 31
Sunny
- 18
- 32
Mostly sunny
- 17
- 23
Cloudy
Today 24 Dec Kangaroo Island
Cloudy. Winds southerly 20 to 30 km/h.
Investigator Strait Coastal Waters
- Wind
- Southerly 15 to 20 knots turning southeasterly in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres through the Backstairs Passage.
- Weather
- Cloudy.
- Weather Situation
- A broad ridge of high pressure persists across South Australia this week as the high pressure centre moves to the south of the Bight on Thursday, continuing eastwards on Friday, to be south of Tasmania on Saturday. The next cold front crosses south of the Bight on Sunday dragging a low pressure trough across western parts of the State.
Ballast Head Temperature Statistics View More
December Temperature
Kingscote Airport (25km)
Lowest 7 December, 2025
3.8 °CAverage December
17.7 °CHighest 18 December, 2025
41 °C
Climate (2020–Present)
Kingscote Airport (25km)
Average Low 2020–2025
9.2 °CAverage 2020–2025
14.7 °CAverage High 2020–2025
21.1 °C