Koonya Ocean Beach Weather Forecast

    • 11
    • 18

    Partly cloudy

    • 11
    • 19

    Partly cloudy

    • 13
    • 25

    Partly cloudy

    • 14
    • 19

    Shower

    • 11
    • 19

    Shower

    • 11
    • 17

    Windy

    • 11
    • 17

    Partly cloudy

Today 10 Dec Mornington Peninsula

Mostly clear. Winds southerly 15 to 20 km/h tending southeasterly in the late evening.

Port Phillip Local Waters

Wind
Southerly 10 to 15 knots tending southeasterly in the late evening.
Seas
Below 1 metre.
Weather
Mostly clear.
Weather Situation
A ridge of high pressure extends across Victoria, and is expected to continue into Thursday, as the high centre to the south of the Bight is forecast to move eastwards across Tasmania on Thursday. A trough is forecast to extend from NSW into the northeast of Victoria at times during Wednesday and Thursday, before a more significant trough is forecast to move across the far west on Friday then over the remainder of the state on Saturday. A cold front in expected to move through Bass Strait during Sunday with increasing south to southwesterly flow over the state as a secondary high pressure ridge extends over from the west.
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  • Temperature Forecast Bureau of Meteorology

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Koonya Ocean Beach Temperature Statistics View More

December Temperature

Cerberus (37km)

  • Lowest 3 December, 2025

    6 °C
  • Average December

    15.8 °C
  • Highest 4 December, 2025

    34 °C

Climate (2020–Present)

Cerberus (37km)

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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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