MacDonnell Bay Weather Forecast
- 8
- 21
Partly cloudy
- 14
- 22
Shower
- 10
- 15
Windy
- 8
- 16
Shower
- 7
- 21
Shower
- 8
- 17
Shower
- 6
- 13
Shower
Today 14 Sep Lower South East
Mostly sunny day. Slight chance of a shower in the evening. Winds northerly 25 to 35 km/h. Overnight temperatures falling to around 7 with daytime temperatures reaching the low 20s.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Northerly 15 to 25 knots, reaching up to 30 knots during the day.
- Seas
- 1 to 2 metres, increasing to 2 to 3 metres around midday.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy.
MacDonnell Bay Temperature Statistics View More
September Temperature
Mount Gambier Airport (34km)
Lowest 5 September, 2025
-0.2 °CAverage September
10.8 °CHighest 7 September, 2025
21.5 °C
Climate (2020–Present)
Mount Gambier Airport (34km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.7 °CAverage High 2020–2025
20 °C