Round Island Weather Forecast

    • 11
    • 19

    Shower or two. Wind easing

    • 12
    • 18

    Shower or two

    • 11
    • 19

    Shower or two. Windy

    • 11
    • 17

    Possible shower

    • 11
    • 17

    Cloudy

    • 11
    • 21

    Sunny

    • 12
    • 26

    Sunny

Today 22 Dec Central

Cloudy. Medium chance of showers in the southeast, slight chance elsewhere. Winds west to southwesterly 15 to 25 km/h becoming light in the late evening. Overnight temperatures falling to between 7 and 11 with daytime temperatures reaching between 18 and 21.

Western Port Local Waters

Wind
Westerly 10 to 15 knots, reaching up to 25 knots west of Sandy Point during the morning. Winds tending southwesterly in the early afternoon then turning west to northwesterly below 10 knots in the late evening.
Seas
1 to 2 metres, decreasing to 1 metre during the afternoon.
Weather
Cloudy. 50% 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

    16.4 °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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