MacDonnell Bay Weather Forecast
- 11
- 20
Shower
- 12
- 17
Cloudy
- 3
- 18
Partly cloudy
- 9
- 23
Shower
- 11
- 20
Cloudy
- 10
- 25
Partly cloudy
- 14
- 23
Shower
Today 16 Apr Lower South East
Partly cloudy. High chance of showers, becoming less likely in the evening. The chance of a thunderstorm in the late afternoon and evening. Winds westerly 25 to 35 km/h decreasing to 15 to 25 km/h in the late afternoon then turning southwesterly 15 to 20 km/h in the evening.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Westerly 15 to 25 knots turning southwesterly 15 to 20 knots in the late afternoon. Winds south of Port MacDonnell may reach up to 30 knots at times.
- Seas
- 1 to 2 metres.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the late afternoon and evening.
- Weather Situation
- A high pressure system south of the Bight extends a ridge over SA. The high will move east during Friday and Saturday ahead of a weakening trough that is expected to brush the west and south on the weekend. The high is forecast to be over the Tasman Sea by Monday, extending a ridge over South Australia through until Tuesday.
MacDonnell Bay Temperature Statistics View More
April Temperature
Mount Gambier Airport (34km)
Lowest 4 April, 2026
3.6 °CAverage April
14.1 °CHighest 5 April, 2026
25.3 °C
Climate (2021–Present)
Mount Gambier Airport (34km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20 °C