Sullivan Bay Weather Forecast

    • 17
    • 24

    Partly cloudy

    • 14
    • 21

    Partly cloudy

    • 13
    • 27

    Partly cloudy

    • 17
    • 26

    Partly cloudy

    • 15
    • 22

    Shower

    • 11
    • 16

    Shower

    • 9
    • 15

    Shower

Today 20 Oct Mornington Peninsula

Partly cloudy. Slight chance of a shower in the afternoon and early evening. The chance of a thunderstorm in the afternoon and early evening. Winds northerly 25 to 40 km/h decreasing to 20 to 30 km/h in the early afternoon then turning east to northeasterly 15 to 20 km/h in the evening.

Port Phillip Local Waters

Wind
Northerly 15 to 20 knots turning east to northeasterly below 10 knots in the evening.
Seas
Around 1 metre.
Weather
Partly cloudy. The chance of a thunderstorm during this afternoon and early evening.
Weather Situation
A high pressure system centred over the Tasman Sea will move slowly eastwards throughout this week. A weak trough will move over western Victoria during Tuesday and Wednesday, before a cold front approaches from the west on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sullivan Bay Temperature Statistics View More

October Temperature

Cerberus (36 km)

  • Lowest 15 October, 2026

    3.3 °C

  • Average October

    14.7 °C

  • Highest 9 October, 2026

    27 °C

Climate (2021–2026)

Cerberus (36 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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