MacDonnell Bay Weather Forecast
- 11
- 18
Shower
- 8
- 15
Shower
- 11
- 17
Shower
- 11
- 17
Shower
- 11
- 17
Shower
- 10
- 18
Shower
- 8
- 21
Partly cloudy
Today 6 May Lower South East
Partly cloudy. Medium chance of showers, becoming less likely later this evening. Winds southwesterly 25 to 35 km/h.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southwesterly 25 to 30 knots.
- Seas
- 2 to 3 metres.
- 1st Swell
- Southwesterly 3 metres, increasing to 3 to 4 metres by early evening.
- Weather
- Cloudy. 80% chance of showers south of Beachport, 50% chance elsewhere. Possible small hail south of Port MacDonnell.
- Weather Situation
- A ridge of high pressure over SA will weaken briefly as a cold front crosses the southeast of the state on Wednesday afternoon. The ridge will re-establish over SA in the wake of the front and stabilise over SA as the main high pressure centre moves over waters south of the Bight over the weekend. The high will then move eastwards early next week to be centred southeast of Tasmania late Tuesday.
MacDonnell Bay Temperature Statistics View More
May Temperature
Mount Gambier Airport (34km)
Lowest 5 May, 2026
10.4 °CAverage May
16 °CHighest 1 May, 2026
28.5 °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