Moonta Bay Weather Forecast
- 5
- 18
Cloudy
- 6
- 17
Cloudy
- 5
- 17
Shower or two
- 7
- 19
Shower or two
- 9
- 19
Showers
- 7
- 17
Shower or two
- 5
- 16
Possible shower
Today 15 Aug Yorke Peninsula
Partly cloudy. Slight chance of a shower. Winds easterly 15 to 20 km/h turning southeasterly in the early afternoon. Daytime maximum temperatures around 17.
Spencer Gulf Coastal Waters
- Wind
- East to southeasterly about 10 knots increasing to 10 to 15 knots in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres south of Cowell to Wallaroo.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred in the Bight, is slowly drifting to the southeast to be located in the Tasman Sea on Monday. A ridge of high pressure is expected to remain over South Australia. A trough of low pressure moves in the far west of South Australia later on Tuesday.
Moonta Bay Temperature Statistics View More
August Temperature
Kadina Airport (13km)
Lowest 1 August, 2026
-0.8 °CAverage August
11.1 °CHighest 7 August, 2026
19 °C
Climate (2021–2026)
Kadina Airport (13km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.5 °C