O'Sullivan Beach Weather Forecast
- 10
- 16
Windy. Cloudy
- 9
- 12
Rain. Windy
- 8
- 15
Showers
- 11
- 16
Showers
- 11
- 17
Cloud clearing
- 11
- 16
Shower or two
- 9
- 15
Showers
Today 8 Jul Adelaide
Cloudy. Slight chance of a shower. Winds westerly 25 to 35 km/h decreasing to 15 to 25 km/h in the late evening.
Adelaide Metropolitan Waters
- Wind
- Westerly 15 to 20 knots, reaching up to 25 knots south of Brighton in the evening.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- West to southwesterly around 1 metre.
- Weather
- Cloudy.
- Weather Situation
- A strong cold front approaching western waters, will move across coastal waters on Wednesday. A high pressure ridge moves into western waters on Thursday and remaining waters on Friday.
O'Sullivan Beach Temperature Statistics View More
July Temperature
Noarlunga (5km)
Lowest 1 July, 2025
5.3 °CAverage July
11.9 °CHighest 4 July, 2025
18.2 °C
Climate (2020–Present)
Noarlunga (5km)
Average Low 2020–2025
12.7 °CAverage 2020–2025
16.7 °CAverage High 2020–2025
21.8 °C