Port Moonta Weather Forecast
- 7
- 19
Showers increasing
- 9
- 18
Shower or two
- 6
- 17
Mostly sunny
- 4
- 16
Partly cloudy
- 6
- 16
Partly cloudy
- 4
- 17
Partly cloudy
- 7
- 17
Shower or two
Today 18 Aug Yorke Peninsula
Partly cloudy. Very high chance of showers, most likely in the evening. The chance of a thunderstorm in the south in the evening. Winds northeasterly 15 to 25 km/h turning northerly 20 to 30 km/h in the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching around 18.
Spencer Gulf Coastal Waters
- Wind
- North to northeasterly 15 to 20 knots tending north to northwesterly in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo during the afternoon.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Port Neill to Port Victoria.
- Weather
- Partly cloudy. 90% chance of showers. The chance of a thunderstorm south of Port Neill to Port Victoria in the evening.
Port Moonta Temperature Statistics View More
August Temperature
Kadina Airport (14km)
Lowest 1 August, 2026
-0.8 °CAverage August
11 °CHighest 7 August, 2026
19 °C
Climate (2021–2026)
Kadina Airport (14km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
16.4 °CAverage High 2021–2026
23.5 °C