Sunnyside Beach Weather Forecast

    • 13
    • 18

    Showers clearing

    • 9
    • 15

    Shower or two

    • 7
    • 15

    Cloudy

    • 5
    • 20

    Mostly sunny

    • 7
    • 21

    Partly cloudy

    • 9
    • 22

    Mostly sunny

    • 10
    • 24

    Sunny

Today 12 Oct Mornington Peninsula

Cloudy. Very high chance of showers in the morning and early afternoon. The chance of a thunderstorm in the early morning. Winds north to northwesterly 25 to 35 km/h turning west to southwesterly in the morning.

Port Phillip Local Waters

Wind
North to northwesterly 15 to 20 knots turning west to southwesterly during the morning.
Seas
Around 1 metre.
Weather
Cloudy. 90% chance of showers in the morning and early afternoon. The chance of a thunderstorm in the early morning.
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  • Temperature Forecast Bureau of Meteorology

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Sunnyside Beach Temperature Statistics View More

October Temperature

Cerberus (20 km)

  • Lowest 6 October, 2026

    7.2 °C

  • Average October

    14.1 °C

  • Highest 9 October, 2026

    27 °C

Climate (2021–2026)

Cerberus (20 km)

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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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