O'Sullivan Beach Weather Forecast
- 12
- 20
Partly cloudy
- 11
- 19
Partly cloudy
- 10
- 23
Mostly sunny
- 13
- 27
Partly cloudy
- 19
- 29
Shower or two
- 18
- 24
Partly cloudy
- 15
- 28
Possible shower
Today 15 Nov Adelaide
Partly cloudy. Winds south to southwesterly 20 to 30 km/h tending south to southeasterly 15 to 20 km/h in the evening.
Adelaide Metropolitan Waters
- Wind
- Southerly 15 to 20 knots, reaching up to 25 knots north of Grange in the evening.
- Seas
- 1 to 2 metres, decreasing below 1.5 metres later in the evening.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred south of WA extends a ridge over most of SA. The high will move slowly eastwards during the week. A trough over inland WA will move over SA later in the week.
O'Sullivan Beach Temperature Statistics View More
November Temperature
Noarlunga (5 km)
Lowest 7 November, 2026
8.1 °CAverage November
16.4 °CHighest 12 November, 2026
26.4 °C
Climate (2021–2026)
Noarlunga (5 km)
Average Low 2021–2026
12.9 °CAverage 2021–2026
16.8 °CAverage High 2021–2026
21.9 °C