Half Moon Bay Weather Forecast

    • 8
    • 16

    Cloudy

    • 6
    • 17

    Cloud clearing

    • 5
    • 21

    Mostly sunny

    • 11
    • 23

    Shower or two

    • 13
    • 21

    Shower or two

    • 11
    • 15

    Showers

    • 7
    • 15

    Shower or two

Today 10 Sep Melbourne

Cloudy. Light winds becoming southerly 15 to 20 km/h in the morning then becoming light in the late afternoon.

Port Phillip Local Waters

Wind
South to southwesterly 10 to 15 knots decreasing to below 10 knots in the late evening.
Seas
Below 1 metre.
Weather
Partly cloudy.
Weather Situation
A strong high pressure system south of the Bight is directing a cool south to southwesterly airstream across Victoria. The high will extend a ridge across Victoria today as it moves slowly east, before crossing Bass Strait on Friday. Winds will tend warmer northerly on Saturday as the high moves over the Tasman Sea, with a weakening cold front forecast to approach western Victoria later on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Half Moon Bay Temperature Statistics View More

September Temperature

Moorabbin Airport (21km)

  • Lowest 8 September, 2026

    4.5 °C

  • Average September

    13 °C

  • Highest 1 September, 2026

    21.9 °C

Climate (2021–2026)

Moorabbin Airport (21km)

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  • Average Low 2021–2026

    10.8 °C

  • Average 2021–2026

    15.3 °C

  • Average High 2021–2026

    20.5 °C
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