Cape Sir William Grant Weather Forecast
- 7
- 13
Shower or two
- 7
- 13
Shower or two
- 5
- 15
Shower or two
- 5
- 16
Possible shower
- 8
- 15
Showers
- 8
- 13
Showers
- 7
- 13
Showers easing
Today 4 Aug South West
Cloudy. High chance of showers near the coast, medium chance elsewhere. Winds west to southwesterly 15 to 25 km/h becoming light in the late evening.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Southwesterly 15 to 20 knots.
- Seas
- 1 to 2 metres.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A low near Tasmania extends a trough over southeastern VIC on Tuesday. The low moves eastwards into Wednesday allowing a high pressure system to the north to extend a ridge over the west, moving slowly eastwards across the state through to the end of the week as the high moves out over the Tasman Sea on Saturday. A weak front clips the south on Thursday.
Cape Sir William Grant Temperature Statistics View More
August Temperature
Cape Nelson Lighthouse (7km)
Lowest 1 August, 2026
5.6 °CAverage August
9.9 °CHighest 2 August, 2026
15.7 °C
Climate (2021–2026)
Cape Nelson Lighthouse (7km)
Average Low 2021–2026
11.9 °CAverage 2021–2026
14.4 °CAverage High 2021–2026
17.6 °C