Round Island Weather Forecast

    • 11
    • 16

    Showers. Windy

    • 10
    • 16

    Shower or two

    • 8
    • 15

    Shower or two

    • 9
    • 15

    Shower or two

    • 7
    • 16

    Partly cloudy

    • 10
    • 17

    Showers increasing

    • 10
    • 15

    Showers easing

Today 19 Aug Central

Cloudy. Very high chance of showers, becoming less likely in the late afternoon and evening. The chance of a thunderstorm about the ranges in the afternoon and evening. Damaging winds possible. Winds northerly 30 to 45 km/h decreasing to 15 to 20 km/h in the late evening. Daytime maximum temperatures between 11 and 17.

Western Port Local Waters

Wind
Northerly 15 to 20 knots, reaching up to 25 knots west of Sandy Point in the late morning and early afternoon.
Seas
Below 1 metre.
Weather
Cloudy. 90% 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.
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  • Temperature Forecast Bureau of Meteorology

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Round Island Temperature Statistics View More

August Temperature

Cerberus (18km)

  • Lowest 2 August, 2026

    2.3 °C

  • Average August

    10.5 °C

  • Highest 2 August, 2026

    17.4 °C

Climate (2021–2026)

Cerberus (18km)

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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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