Blanche Bay Weather Forecast
- 10
- 20
Partly cloudy
- 12
- 18
Shower
- 10
- 17
Cloudy
- 11
- 20
Shower
- 12
- 19
Partly cloudy
- 9
- 19
Partly cloudy
- 9
- 20
Windy
Today 5 Dec Lower South East
Mostly sunny day. Slight chance of a shower in the evening. Light winds becoming west to southwesterly 15 to 25 km/h in the middle of the day then becoming light in the late evening. Daytime maximum temperatures 20 to 27.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Northwesterly 10 to 15 knots tending westerly in the early afternoon.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A low pressure trough will linger over the northeast and far north today as a ridge of high pressure builds over the south. The trough will clear to the northeast of SA late Saturday. A weak cold front will move across the southern coastal districts on Saturday as the high centre becomes established over the western Bight. The high will move slowly eastwards on Sunday and early next week.
Blanche Bay Temperature Statistics View More
December Temperature
Mount Gambier Airport (35km)
Lowest 2 December, 2025
7.7 °CAverage December
16.2 °CHighest 3 December, 2025
28.6 °C
Climate (2020–Present)
Mount Gambier Airport (35km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.6 °CAverage High 2020–2025
19.9 °C