Cape Sir William Grant Weather Forecast
- 5
- 14
Possible shower
- 4
- 15
Partly cloudy
- 7
- 15
Showers
- 8
- 14
Rain
- 7
- 13
Showers easing
- 7
- 15
Showers
- 6
- 12
Showers. Windy
Today 6 Aug South West
Cloudy. Medium chance of showers, becoming less likely later tonight. Winds west to northwesterly 15 to 20 km/h becoming light in the evening.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Northwest to southwesterly 10 to 15 knots, reaching up to 20 knots in the far east in the late afternoon. Winds tending southwesterly in the late afternoon.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre later in the evening.
- 1st Swell
- Southwesterly 1.5 to 2.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system to the north extends a ridge over the west of the state. The ridge will slowly move eastwards across the state through to the end of the week. A weak trough will clip parts of the south during Thursday. The high pressure system will move out over the Tasman Sea on Saturday ahead of a vigorous cold front expected to cross the state on Sunday. A low pressure system will move across Bass Strait on Monday morning in the wake of Sunday's front.
Cape Sir William Grant Temperature Statistics View More
August Temperature
Cape Nelson Lighthouse (7km)
Lowest 1 August, 2026
5.6 °CAverage August
10.6 °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