Sullivan Bay Weather Forecast

    • 13
    • 18

    Shower

    • 10
    • 14

    Shower

    • 9
    • 13

    Windy

    • 8
    • 14

    Cloudy

    • 8
    • 19

    Partly cloudy

    • 12
    • 21

    Sunny

    • 13
    • 19

    Shower

Today 14 Sep Mornington Peninsula

Partly cloudy. High chance of showers, most likely in the morning. Winds northerly 25 to 35 km/h turning westerly 15 to 20 km/h in the morning.

Port Phillip Local Waters

Wind
North to northwesterly 10 to 15 knots turning west to southwesterly below 10 knots in the late morning and afternoon.
Seas
Below 1 metre.
Weather
Partly cloudy. 70% chance of showers.
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Sullivan Bay Temperature Statistics View More

September Temperature

Cerberus (36km)

  • Lowest 8 September, 2026

    3.3 °C

  • Average September

    12.3 °C

  • Highest 5 September, 2026

    17.6 °C

Climate (2021–2026)

Cerberus (36km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    14.6 °C

  • Average High 2021–2026

    19.6 °C
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