MacDonnell Bay Weather Forecast
- 11
- 21
Cloudy
- 12
- 27
Partly cloudy
- 14
- 29
Partly cloudy
- 16
- 22
Shower
- 9
- 21
Partly cloudy
- 13
- 17
Partly cloudy
- 10
- 17
Cloudy
Today 29 Mar Lower South East
Partly cloudy. Light winds. Daytime maximum temperatures in the low to mid 20s.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Variable about 10 knots becoming easterly 10 to 15 knots in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 2.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system over Bass Strait will continue to move slowly eastwards to be centred over the Tasman Sea on Monday. A trough is forecast to move across the western and central waters Tuesday afternoon and evening, pushing across southeastern coasts Wednesday morning. Another high pressure system is expected to become established south of the Bight later next week.
MacDonnell Bay Temperature Statistics View More
March Temperature
Mount Gambier Airport (34km)
Lowest 10 March, 2026
7.2 °CAverage March
16.1 °CHighest 23 March, 2026
31.5 °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