Round Island Weather Forecast

    • 12
    • 18

    Becoming windy. Partly cloudy

    • 12
    • 18

    Shower or two. Windy

    • 11
    • 17

    Wind easing. Cloudy

    • 11
    • 17

    Cloudy

    • 10
    • 20

    Sunny

    • 12
    • 26

    Sunny

    • 14
    • 28

    Sunny

Today 23 Dec Central

Partly cloudy. High chance of showers in the southeast, medium chance elsewhere. Winds west to northwesterly 15 to 20 km/h tending west to southwesterly 20 to 30 km/h early in the morning. Overnight temperatures falling to between 8 and 12 with daytime temperatures reaching between 18 and 21.

Western Port Local Waters

Wind
West to northwesterly 15 to 20 knots turning southwesterly 15 to 25 knots in the early morning then tending westerly 15 to 20 knots in the late evening.
Seas
Below 1 metre, increasing to 1.5 to 2 metres west of Sandy Point during the morning.
Weather
Partly cloudy. 70% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Round Island Temperature Statistics View More

December Temperature

Cerberus (18km)

  • Lowest 3 December, 2025

    6 °C

  • Average December

    16.3 °C

  • Highest 18 December, 2025

    35.8 °C

Climate (2020–Present)

Cerberus (18km)

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  • Average Low 2020–2025

    10.1 °C

  • Average 2020–2025

    14.5 °C

  • Average High 2020–2025

    19.5 °C
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