Port Macdonnell Weather Forecast
- 9
- 15
Cloudy
- 4
- 16
Partly cloudy
- 4
- 17
Shower
- 8
- 16
Shower
- 9
- 17
Shower
- 8
- 18
Cloudy
- 7
- 19
Shower
Today 18 May Lower South East
Partly cloudy. Areas of frost this morning, mainly in the north. Light winds becoming south to southeasterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon. Daytime maximum temperatures around 16.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- South to southeasterly 10 to 15 knots becoming variable below 10 knots in the middle of the day.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 3 to 4 metres, decreasing to 3 metres during the afternoon.
- Weather
- Cloudy.
- Weather Situation
- A high pressure system centred south of the Bight will move slowly eastwards to the south of Kangaroo Island today, then over eastern Victoria late Monday. A cold front will move over the south of SA on Tuesday then another high will move across the Bight mid to late next week.
Port Macdonnell Temperature Statistics View More
May Temperature
Mount Gambier Airport (34km)
Lowest 2 May, 2025
1.2 °CAverage May
13.2 °CHighest 5 May, 2025
26.7 °C
Climate (2020–Present)
Mount Gambier Airport (34km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.6 °CAverage High 2020–2025
20 °C