Number One Rocks Weather Forecast
- 7
- 14
Shower
- 10
- 15
Shower
- 9
- 16
Shower
- 7
- 16
Shower
- 9
- 15
Shower
- 6
- 19
Shower
- 12
- 18
Shower
Today 30 Aug Lower South East
Cloudy. Medium chance of showers in the south, slight chance elsewhere. Possible hail early this morning. Winds southwesterly 25 to 35 km/h turning westerly 15 to 20 km/h in the late afternoon. Daytime maximum temperatures around 14.
Lower South East Coastal Waters
Cape Jaffa to SA-Vic Border- Wind
- Southwesterly 15 to 20 knots, reaching up to 25 knots south of Port MacDonnell in the late morning and afternoon. Winds turning westerly in the late afternoon.
- Seas
- 1.5 to 2 metres.
- 1st Swell
- Southwesterly 4 to 5 metres.
- Weather
- Cloudy. 50% chance of showers.
- Weather Situation
- A low pressure system moving east through Bass Strait is producing a weakening but cold south to southwesterly flow over South Australia. A high pressure system over southern WA will move slowly eastwards to be over inland South Australia later in the weekend, remaining near-stationary into early next week. A westerly flow will continue for coastal areas on the southern flank of the high pressure system.
Number One Rocks Temperature Statistics View More
August Temperature
Mount Gambier Airport (40km)
Lowest 2 August, 2025
0 °CAverage August
10.1 °CHighest 21 August, 2025
19 °C
Climate (2020–Present)
Mount Gambier Airport (40km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.7 °CAverage High 2020–2025
20 °C