Koonya Ocean Beach Weather Forecast

    • 9
    • 15

    Cloudy

    • 8
    • 20

    Partly cloudy

    • 12
    • 21

    Partly cloudy

    • 13
    • 22

    Windy

    • 10
    • 14

    Cloudy

    • 8
    • 15

    Partly cloudy

    • 8
    • 19

    Partly cloudy

Today 17 Sep Mornington Peninsula

Cloudy. Winds southwesterly 15 to 20 km/h tending westerly in the middle of the day then becoming light in the evening.

Port Phillip Local Waters

Wind
West to southwesterly about 10 knots.
Seas
Below 1 metre.
Weather
Cloudy.
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  • Temperature Forecast Bureau of Meteorology

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Koonya Ocean Beach Temperature Statistics View More

September Temperature

Cerberus (37km)

  • Lowest 8 September, 2026

    3.3 °C

  • Average September

    12.7 °C

  • Highest 13 September, 2026

    25.6 °C

Climate (2021–2026)

Cerberus (37km)

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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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