Sullivan Bay Weather Forecast

    • 8
    • 21

    Partly cloudy

    • 13
    • 21

    Sunny

    • 13
    • 23

    Windy

    • 10
    • 14

    Windy

    • 8
    • 15

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 10
    • 18

    Partly cloudy

Today 18 Sep Mornington Peninsula

Mostly sunny. Winds northwesterly 15 to 25 km/h.

Port Phillip Local Waters

Wind
West to northwesterly below 10 knots tending north to northwesterly 10 to 15 knots in the early morning.
Seas
Below 1 metre.
Weather
Mostly sunny.
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Sullivan Bay Temperature Statistics View More

September Temperature

Cerberus (36km)

  • Lowest 8 September, 2026

    3.3 °C

  • Average September

    12.6 °C

  • Highest 13 September, 2026

    25.6 °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

    19.7 °C
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