Barrallier Island Weather Forecast
- 11
- 17
Possible shower
- 10
- 17
Showers increasing
- 8
- 15
Shower or two
- 9
- 15
Shower or two
- 7
- 16
Partly cloudy
- 9
- 17
Shower or two
- 10
- 15
Showers
Today 19 Aug Mornington Peninsula
Partly cloudy. Medium chance of showers. Winds northerly 25 to 40 km/h decreasing to 15 to 25 km/h in the late evening.
Western Port Local Waters
- Wind
- Northerly 10 to 15 knots, reaching up to 20 knots west of Sandy Point in the late afternoon.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A large high pressure system over the Tasman Sea is responsible for northerly winds across Victoria. A weak front will move across the state later today. A ridge of high pressure will become established over the north with further weak features passing to the south in a broad westerly flow. A high pressure system is expected to be centred over the state on the weekend.
Barrallier Island Temperature Statistics View More
August Temperature
Cerberus (15km)
Lowest 2 August, 2026
2.3 °CAverage August
10.5 °CHighest 2 August, 2026
17.4 °C
Climate (2021–2026)
Cerberus (15km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
14.6 °CAverage High 2021–2026
19.7 °C