Cape Sir William Grant Weather Forecast
- 10
- 18
Sunny
- 9
- 26
Mostly sunny
- 12
- 18
Partly cloudy
- 11
- 17
Shower or two. Windy
- 10
- 16
Cloudy
- 9
- 17
Partly cloudy
- 9
- 23
Sunny
Today 11 Dec South West
Mostly sunny. Winds southeasterly 20 to 30 km/h. Overnight temperatures falling to around 7 with daytime temperatures reaching 21 to 27.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Southeasterly 10 to 15 knots turning easterly 15 to 20 knots during the day.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres around midday.
- 1st Swell
- Southwesterly 2 to 2.5 metres.
- Weather
- Sunny.
Cape Sir William Grant Temperature Statistics View More
December Temperature
Cape Nelson Lighthouse (7km)
Lowest 5 December, 2025
9.7 °CAverage December
15.2 °CHighest 3 December, 2025
25.3 °C
Climate (2020–Present)
Cape Nelson Lighthouse (7km)
Average Low 2020–2025
11.8 °CAverage 2020–2025
14.3 °CAverage High 2020–2025
17.5 °C