Koonya Ocean Beach Weather Forecast

    • 11
    • 17

    Partly cloudy

    • 11
    • 25

    Shower

    • 12
    • 18

    Shower

    • 11
    • 18

    Shower

    • 11
    • 19

    Shower

    • 10
    • 15

    Cloudy

    • 9
    • 16

    Cloudy

Today 18 Oct Mornington Peninsula

Slight chance of a shower this morning. Mostly sunny afternoon. Winds west to southwesterly 15 to 25 km/h becoming light in the early afternoon then becoming east to northeasterly 15 to 20 km/h in the late evening.

Port Phillip Local Waters

Wind
West to southwesterly 10 to 15 knots shifting east to southeasterly in the middle of the day then becoming variable below 10 knots in the evening.
Seas
Below 1 metre.
Weather
Mostly sunny.
Weather Situation
A high pressure system south of the Bight extends a ridge over western Victoria. The high will move eastwards across Victoria today to be over the Tasman Sea late evening. A trough will follow over the state Sunday and Monday. Another high pressure system is forecast to pass over the state on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Koonya Ocean Beach Temperature Statistics View More

October Temperature

Cerberus (37km)

  • Lowest 14 October, 2025

    4.5 °C

  • Average October

    13.8 °C

  • Highest 16 October, 2025

    29.8 °C

Climate (2020–Present)

Cerberus (37km)

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  • Average Low 2020–2025

    10.2 °C

  • Average 2020–2025

    14.5 °C

  • Average High 2020–2025

    19.6 °C
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