Moonta Bay Weather Forecast
- 13
- 20
Showers increasing
- 11
- 18
Shower or two
- 11
- 20
Cloudy
- 9
- 21
Partly cloudy
- 8
- 22
Partly cloudy
- 9
- 23
Sunny
- 10
- 22
Mostly sunny
Today 10 Apr Yorke Peninsula
Partly cloudy. High chance of showers. Winds westerly 30 to 45 km/h turning southwesterly 25 to 35 km/h in the evening. Daytime maximum temperatures around 20.
Spencer Gulf Coastal Waters
- Wind
- Westerly 20 to 25 knots, reaching up to 30 knots south of Cowell to Wallaroo in the late morning and afternoon. Winds turning southwesterly in the late afternoon.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A high pressure system south of WA extends a ridge over South Australia. A trough will pass over the southeast this evening in the southwesterly flow on the eastern flank of this approaching high. The ridge will persist over SA this weekend as the high moves slowly east to be south of the Bight by Sunday night. The high is forecast to weaken and step back to the west early next week allowing another trough to pass over the southeast Tuesday night.
Moonta Bay Temperature Statistics View More
April Temperature
Kadina Airport (13km)
Lowest 2 April, 2026
10.2 °CAverage April
18.8 °CHighest 4 April, 2026
28.7 °C
Climate (2021–Present)
Kadina Airport (13km)
Average Low 2021–2026
10.1 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.4 °C