Port MacDonnell Lighthouse Weather Forecast
- 10
- 19
Cloudy
- 9
- 20
Windy
- 9
- 25
Partly cloudy
- 12
- 19
Cloudy
- 10
- 19
Shower
- 11
- 17
Cloudy
- 9
- 19
Partly cloudy
Today 10 Dec Lower South East
Partly cloudy. High chance of showers in the north, medium chance elsewhere. Light winds becoming southeasterly 15 to 25 km/h in the morning. Daytime maximum temperatures around 20.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southeasterly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres north of Port MacDonnell by early evening.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy. 60% chance of showers north of Beachport, near zero chance elsewhere.
- Weather Situation
- A high pressure system over the Bight extends a ridge of high pressure over most of the state and will persist over southern SA during today and Thursday. Meanwhile, a trough of low pressure over the far northwest is expected to move along the northern border today. The trough will extend further south on Thursday then move eastwards across the west and south of SA on Friday. Another ridge of high pressure will move over the south over the weekend and the trough will move slowly northeastwards.
Port MacDonnell Lighthouse Temperature Statistics View More
December Temperature
Mount Gambier Airport (35km)
Lowest 7 December, 2025
4.7 °CAverage December
14.7 °CHighest 3 December, 2025
28.6 °C
Climate (2020–Present)
Mount Gambier Airport (35km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.6 °CAverage High 2020–2025
19.9 °C