Prime Beach Weather Forecast
- 10
- 27
Sunny
- 10
- 28
Sunny
- 13
- 28
Windy
- 14
- 23
Windy
- 13
- 26
Partly cloudy
- 14
- 29
Sunny
- 17
- 34
Partly cloudy
Today 12 Jan Mid North
Sunny. Winds east to southeasterly 15 to 20 km/h tending southeast to southwesterly 15 to 25 km/h in the middle of the day then increasing to 25 to 35 km/h in the early afternoon. Daytime maximum temperatures around 30.
Gulf St Vincent Coastal Waters
- Wind
- Variable about 10 knots becoming south to southwesterly 10 to 15 knots in the middle of the day then becoming southerly 15 to 25 knots in the early afternoon.
- Seas
- Below 1 metre, increasing to 1 to 2 metres during the afternoon.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Sunny.
- Weather Situation
- A high pressure ridge south of the state will persist over the coming days with multiple weak high pressure centres moving to the south. A low pressure trough will move west of the state late on Tuesday. This trough will be pushed northwards along the WA border as new high pressure system develops south of the Bight on Wednesday. This high will remain relatively stationary to the south on Thursday as it extends a weak ridge over the state.
Prime Beach Temperature Statistics View More
January Temperature
Roseworthy (32km)
Lowest 1 January, 2026
6.6 °CAverage January
23.8 °CHighest 8 January, 2026
47.1 °C
Climate (2021–Present)
Roseworthy (32km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
16.2 °CAverage High 2021–2026
23.6 °C