Moonta Bay Weather Forecast
- 5
- 18
Cloudy
- 9
- 16
Cloudy
- 5
- 19
Cloud clearing
- 5
- 21
Sunny
- 9
- 23
Mostly sunny
- 12
- 25
Possible shower then sunny
- 12
- 22
Shower or two
Today 8 Sep Yorke Peninsula
Cloudy. Winds southerly 15 to 25 km/h.
Spencer Gulf Coastal Waters
- Wind
- Southerly 15 to 20 knots, reaching up to 25 knots south of Cowell to Wallaroo in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres later in the evening.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system centred south of WA extends a ridge across the south of SA. The main high centre will move eastwards during the week to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday.
Moonta Bay Temperature Statistics View More
September Temperature
Kadina Airport (13km)
Lowest 7 September, 2026
4.7 °CAverage September
12.9 °CHighest 1 September, 2026
22.2 °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