Onkaparinga Head Weather Forecast
- 14
- 28
Possible shower
- 16
- 23
Rain easing
- 14
- 23
Partly cloudy
- 15
- 24
Partly cloudy
- 13
- 24
Cloudy
- 14
- 24
Partly cloudy
- 13
- 29
Sunny
Today 20 Dec Adelaide
Partly cloudy. Slight chance of a shower. Light winds.
Adelaide Metropolitan Waters
- Wind
- Southeasterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Cloudy.
- Weather Situation
- A broad trough of low pressure lingers over the east and northern parts of the State. A low pressure system lies south of the bight and moves east to combine with the trough early Sunday. The combined low pressure system and trough then moves east to clear SA by late Sunday. A high pressure ridge then extends over the west and south of the State behind the low pressure system during Sunday. The high pressure ridge extends across the entire State and Coastal Waters by late Sunday and persists from Monday to Thursday.
Onkaparinga Head Temperature Statistics View More
December Temperature
Noarlunga (3km)
Lowest 2 December, 2025
11.1 °CAverage December
22 °CHighest 14 December, 2025
40.6 °C
Climate (2020–Present)
Noarlunga (3km)
Average Low 2020–2025
12.7 °CAverage 2020–2025
16.6 °CAverage High 2020–2025
21.7 °C