Sullivan Bay Weather Forecast

    • 7
    • 16

    Partly cloudy

    • 10
    • 21

    Windy

    • 15
    • 21

    Shower

    • 14
    • 20

    Shower

    • 11
    • 16

    Shower

    • 9
    • 16

    Partly cloudy

    • 9
    • 18

    Partly cloudy

Today 28 Sep Mornington Peninsula

Sunny. Light winds becoming southeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening.

Port Phillip Local Waters

Wind
Variable about 10 knots.
Seas
Below 1 metre.
Weather
Mostly sunny.
Weather Situation
A high pressure system in the Bight extends a ridge over Victoria. This high will slowly drift through Bass Strait and then into the Tasman Sea by Tuesday as a trough approaches from the west. This trough will cross Victoria on Wednesday with a second trough following on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sullivan Bay Temperature Statistics View More

September Temperature

Cerberus (36km)

  • Lowest 23 September, 2026

    1.8 °C

  • Average September

    13.2 °C

  • Highest 20 September, 2026

    26.2 °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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