Prime Beach Weather Forecast
- 5
- 19
Partly cloudy
- 9
- 16
Rain
- 12
- 16
Shower
- 7
- 16
Partly cloudy
- 6
- 19
Partly cloudy
- 8
- 19
Shower
- 8
- 17
Shower
Today 23 Aug Mid North
Partly cloudy. The chance of morning fog. Winds northerly 15 to 20 km/h becoming light in the late afternoon then becoming north to northeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 17 and 20.
Gulf St Vincent Coastal Waters
- Wind
- North to northeasterly about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southeast to southwesterly below 0.5 metres.
- Weather
- Mostly sunny. The chance of morning fog north of Port Vincent to Brighton with reduced visibility.
- Weather Situation
- A high pressure system centred over the eastern states continue to drift slowly east as a low pressure system and associated trough move into the far western SA later today and then moves across the state on Monday and out over the eastern states by later Tuesday. Another high moves into the west later Tuesday and over SA on Wednesday.
Prime Beach Temperature Statistics View More
August Temperature
Roseworthy (32km)
Lowest 5 August, 2026
0.8 °CAverage August
11 °CHighest 18 August, 2026
19.2 °C
Climate (2021–2026)
Roseworthy (32km)
Average Low 2021–2026
9.9 °CAverage 2021–2026
16.3 °CAverage High 2021–2026
23.7 °C