Blanche Bay Weather Forecast
- 20
- 27
Rain
- 11
- 18
Shower
- 10
- 17
Shower
- 10
- 17
Shower
- 9
- 18
Shower
- 7
- 15
Shower
- 9
- 16
Shower
Today 2 May Lower South East
Cloudy. Very high chance of rain, most likely during this afternoon and evening. The chance of a thunderstorm in the north late this afternoon and evening. Winds northeasterly 20 to 30 km/h increasing to 30 to 45 km/h in the early morning then tending northerly in the morning. Daytime maximum temperatures in the mid to high 20s.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- North to northeasterly 20 to 25 knots, reaching up to 30 knots offshore during the morning and early afternoon. Winds tending north to northwesterly during the day.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southwesterly 1.5 to 2 metres.
- Weather
- Cloudy. 95% chance of rain.
- Weather Situation
- A strong high pressure system over the Tasman Sea extends northerly winds over SA. Winds will freshen ahead of a front that is forecast to move across the far west today then continue across the state during the weekend. The low pressure system associated with this front is expected to linger over waters to the south of the state and extend a trough over southern parts later Sunday and Monday. The low will then move over Bass Strait later Monday. A ridge will extend across SA from the west on Tuesday and a cold front will move across the south later Wednesday.
Blanche Bay Temperature Statistics View More
May Temperature
Mount Gambier Airport (35km)
Lowest 1 May, 2026
14.1 °CAverage May
18.1 °CHighest
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Climate (2021–Present)
Mount Gambier Airport (35km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20 °C