Eastern Sister Weather Forecast

    • 10
    • 16

    Partly cloudy

    • 10
    • 20

    Windy

    • 12
    • 22

    Windy

    • 11
    • 17

    Shower

    • 8
    • 15

    Cloudy

    • 9
    • 19

    Sunny

    • 10
    • 19

    Shower

Today 13 Sep Mornington Peninsula

Cloudy. Slight chance of a shower, most likely in the late morning. Winds westerly 15 to 20 km/h tending northwesterly 15 to 25 km/h in the early morning then becoming light in the middle of the day.

Port Phillip Local Waters

Wind
West to northwesterly 10 to 15 knots becoming variable below 10 knots in the middle of the day.
Seas
Below 1 metre.
Weather
Cloudy.
Weather Situation
A large high pressure system near South Australia extends a ridge over Victoria. The high will move slowly eastward across NSW today, then out into the Tasman Sea on Sunday, turning winds north to northwesterly over Bass Strait. Winds strengthening on Monday as a cold front approaches, then turning westerly on Tuesday as the front crosses Bass Strait.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Eastern Sister Temperature Statistics View More

September Temperature

Cerberus (36km)

  • Lowest 5 September, 2025

    2.2 °C

  • Average September

    12 °C

  • Highest 6 September, 2025

    21.4 °C

Climate (2020–Present)

Cerberus (36km)

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  • Average Low 2020–2025

    10.2 °C

  • Average 2020–2025

    14.5 °C

  • Average High 2020–2025

    19.6 °C
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