Barrallier Island Weather Forecast

    • 7
    • 17

    Showers increasing

    • 11
    • 17

    Showers. Possible afternoon storm

    • 9
    • 16

    Shower or two

    • 9
    • 15

    Showers easing

    • 7
    • 15

    Possible shower

    • 8
    • 14

    Partly cloudy

    • 7
    • 16

    Partly cloudy

Today 4 Sep Mornington Peninsula

Partly cloudy. Very high chance of showers, most likely this evening. Winds northwesterly 20 to 30 km/h turning northerly in the late afternoon then increasing to 25 to 40 km/h in the evening.

Western Port Local Waters

Wind
Northwesterly about 10 knots increasing to 10 to 15 knots in the morning then tending northerly in the late afternoon.
Seas
Below 1 metre.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A cold front embedded in a westerly flow moves away into the Tasman Sea, as a ridge of high pressure builds over the north of the State today. The high will move into the Tasman Sea later today, ahead of an approaching strong cold front to the west. The front will cross Victoria during Saturday. Another ridge of high pressure extends over the State during Sunday before another cold front clips the south of the State on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Barrallier Island Temperature Statistics View More

September Temperature

Cerberus (15km)

  • Lowest 1 September, 2026

    4.9 °C

  • Average September

    13.3 °C

  • Highest 2 September, 2026

    16 °C

Climate (2021–2026)

Cerberus (15km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    14.6 °C

  • Average High 2021–2026

    19.7 °C
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