Port Macdonnell Weather Forecast
- 10
- 17
Cloudy
- 6
- 21
Partly cloudy
- 9
- 30
Partly cloudy
- 12
- 31
Partly cloudy
- 16
- 28
Cloudy
- 13
- 20
Cloudy
- 11
- 19
Shower
Today 15 Dec Lower South East
Mostly clear. Winds south to southeasterly 15 to 20 km/h.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- South to southeasterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 3 metres, increasing to 4 metres south of Port MacDonnell.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system to the south of the state will maintain a ridge across SA as it drifts into the Tasman by Wednesday. A trough of low pressure will briefly enter the far northeast of SA with another trough slowing moving across the south and west on Thursday. A south to southwesterly flow will establish across the coasts on Friday.
Port Macdonnell Temperature Statistics View More
December Temperature
Mount Gambier Airport (34km)
Lowest 7 December, 2025
4.7 °CAverage December
15.2 °CHighest 12 December, 2025
32.6 °C
Climate (2020–Present)
Mount Gambier Airport (34km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.6 °CAverage High 2020–2025
19.9 °C