Koonya Ocean Beach Weather Forecast

    • 13
    • 18

    Partly cloudy

    • 12
    • 18

    Cloudy

    • 12
    • 18

    Partly cloudy

    • 13
    • 24

    Partly cloudy

    • 15
    • 20

    Shower

    • 12
    • 19

    Shower

    • 12
    • 17

    Shower

Today 9 Dec Mornington Peninsula

Mostly sunny. Winds southwesterly 15 to 25 km/h tending southerly in the late afternoon then becoming light in the late evening.

Port Phillip Local Waters

Wind
South to southwesterly 10 to 15 knots, reaching up to 20 knots in the north in the evening. Winds turning southeasterly in the late evening.
Seas
Around 1 metre.
Weather
Mostly sunny.
Weather Situation
A cold front is moving over Bass Strait this morning. A new ridge of high pressure will extend across from the west later today and persist during Wednesday then the main high pressure centre will move eastwards across Tasmania on Thursday. A trough will move across the far west on Friday then over the remainder of the state on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Koonya Ocean Beach Temperature Statistics View More

December Temperature

Cerberus (37km)

  • Lowest 3 December, 2025

    6 °C

  • Average December

    15.4 °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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