Barrallier Island Weather Forecast
- 7
- 18
Partly cloudy
- 11
- 17
Showers. Wind easing
- 9
- 16
Shower or two
- 8
- 15
Shower or two
- 8
- 15
Shower or two
- 8
- 16
Partly cloudy
- 9
- 17
Shower or two
Today 18 Aug Mornington Peninsula
Partly cloudy. Slight chance of a shower. Winds northeasterly 15 to 25 km/h.
Western Port Local Waters
- Wind
- East to northeasterly below 10 knots.
- Seas
- Below 0.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system in the Tasman Sea extends a ridge over most of the state. A weak front will move across South Australia on Tuesday and early Wednesday then will move over Victoria during Wednesday. A high pressure system and associated ridge will approach from the west on Thursday, and be centred over the state on Saturday, as a series of cold fronts move across Tasmania.
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