Gerloff Bay Weather Forecast
- 12
- 21
Windy
- 11
- 19
Partly cloudy
- 10
- 20
Partly cloudy
- 9
- 23
Partly cloudy
- 10
- 29
Partly cloudy
- 12
- 21
Partly cloudy
- 12
- 19
Shower
Today 8 Dec Lower South East
Partly cloudy. Slight chance of a shower in the south this evening. Near zero chance of rain elsewhere. Winds northwesterly 15 to 25 km/h increasing to 25 to 35 km/h in the morning then turning westerly in the early afternoon. Daytime maximum temperatures 21 to 27.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Northwesterly 15 to 20 knots, reaching up to 25 knots south of Beachport during the day. Winds turning west to southwesterly 10 to 15 knots in the evening.
- Seas
- 1.5 to 2 metres, decreasing below 1.5 metres later in the evening.
- 1st Swell
- Westerly 2.5 to 3 metres.
- Weather
- Cloudy. 50% chance of showers south of Beachport, near zero chance elsewhere.
- Weather Situation
- A broad ridge extends over inland parts of the state while a weak cold front clips the southeast late Monday. From Tuesday another high pressure system develops south of the Bight, strengthening the ridge over the state ahead of a trough of low pressure developing across the far northwest late Tuesday persisting late into the week.
Gerloff Bay Temperature Statistics View More
December Temperature
Mount Gambier Airport (37km)
Lowest 7 December, 2025
4.7 °CAverage December
14.3 °CHighest 3 December, 2025
28.6 °C
Climate (2020–Present)
Mount Gambier Airport (37km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.6 °CAverage High 2020–2025
19.9 °C