Sullivan Bay Weather Forecast

    • 9
    • 13

    Cloudy

    • 9
    • 15

    Cloudy

    • 8
    • 20

    Partly cloudy

    • 12
    • 22

    Partly cloudy

    • 13
    • 22

    Windy

    • 10
    • 15

    Shower

    • 8
    • 16

    Partly cloudy

Today 16 Sep Mornington Peninsula

Cloudy. Slight chance of a shower, becoming less likely in the late morning. Winds southerly 20 to 30 km/h becoming light in the late evening.

Port Phillip Local Waters

Wind
Southerly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the afternoon.
Weather
Cloudy.
Weather Situation
A strong high pressure system south of the Bight is directing a cold southwesterly airstream across Victoria. The high will move slowly east on Wednesday and extend a ridge across southern Victoria, with the high moving over western Victoria by Thursday night. Winds will tend warmer northwesterly on Friday and into Saturday as the high moves slowly over NSW.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sullivan Bay Temperature Statistics View More

September Temperature

Cerberus (36km)

  • Lowest 8 September, 2026

    3.3 °C

  • Average September

    12.8 °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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