Port Moonta Weather Forecast
- 16
- 28
Clear
- 15
- 29
Partly cloudy
- 16
- 25
Showers
- 10
- 20
Showers
- 10
- 19
Showers
- 9
- 20
Possible shower
- 9
- 20
Shower or two
Today 30 Apr Yorke Peninsula
Clear. Winds northerly 20 to 25 km/h turning northeasterly 20 to 30 km/h in the late afternoon.
Spencer Gulf Coastal Waters
- Wind
- Northeasterly 10 to 15 knots, reaching up to 20 knots south of Cowell to Wallaroo in the late evening.
- Seas
- Around 1 metre.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- Weather
- Clear.
- Weather Situation
- A strong high pressure system over the Tasman Sea will maintain a ridge across South Australia through to Friday. Northerly winds freshen on Friday ahead of a front that is forecast to move across the far west Friday afternoon, then continue across the state during the weekend. The low pressure system associated with this front is expected to linger over waters to the south of the state resulting in a trough moving over southern parts later Sunday and Monday. The low will then move into Bass Strait on Monday.
Port Moonta Temperature Statistics View More
April Temperature
Kadina Airport (14km)
Lowest 18 April, 2026
6.7 °CAverage April
17.8 °CHighest 21 April, 2026
30.2 °C
Climate (2021–Present)
Kadina Airport (14km)
Average Low 2021–2026
10.1 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.5 °C