Brentwood Weather Forecast
- 14
- 33
Mostly sunny
- 17
- 36
Partly cloudy
- 13
- 27
Mostly sunny
- 11
- 25
Partly cloudy
- 11
- 23
Partly cloudy
- 11
- 28
Sunny
- 12
- 33
Sunny
Today 11 Dec Yorke Peninsula
Partly cloudy. Slight chance of a shower in the north during the morning and afternoon. Near zero chance of rain elsewhere. The chance of a thunderstorm in the north during the morning and afternoon. Winds east to southeasterly 20 to 30 km/h. Daytime maximum temperatures around 30.
Spencer Gulf Coastal Waters
- Wind
- East to southeasterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo early in the morning. Winds tending south to southeasterly in the evening.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre during the morning.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Partly cloudy. The chance of a thunderstorm during the morning and afternoon.
- Weather Situation
- A ridge of high pressure persists over southern SA, before the high centre moves eastwards over the Tasman Sea late today. A trough of low pressure is expected to move eastwards across the SA waters on Friday. Another ridge of high pressure will move over the south during the weekend.
Brentwood Temperature Statistics View More
December Temperature
Minlaton Airport (12km)
Lowest 7 December, 2025
4.6 °CAverage December
18.5 °CHighest 3 December, 2025
33.9 °C
Climate (2020–Present)
Minlaton Airport (12km)
Average Low 2020–2025
10.9 °CAverage 2020–2025
16.1 °CAverage High 2020–2025
22.4 °C