Half Moon Bay Weather Forecast

    • 8
    • 17

    Showers increasing

    • 12
    • 18

    Showers. Possible afternoon storm

    • 10
    • 16

    Shower or two

    • 9
    • 15

    Showers easing

    • 7
    • 15

    Possible shower

    • 8
    • 15

    Partly cloudy

    • 6
    • 17

    Partly cloudy

Today 4 Sep Melbourne

Partly cloudy. Very high chance of showers, most likely this evening. Winds northwesterly 15 to 25 km/h turning northerly 25 to 40 km/h in the early afternoon.

Port Phillip Local Waters

Wind
Northwesterly 10 to 15 knots turning northerly 15 to 20 knots in the late afternoon.
Seas
Around 1 metre.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A cold front embedded in a westerly flow moves away into the Tasman Sea, as a ridge of high pressure builds over the north of the State today. The high will move into the Tasman Sea later today, ahead of an approaching strong cold front to the west. The front will cross Victoria during Saturday. Another ridge of high pressure extends over the State during Sunday before another cold front clips the south of the State on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Half Moon Bay Temperature Statistics View More

September Temperature

Moorabbin Airport (21km)

  • Lowest 1 September, 2026

    6.6 °C

  • Average September

    13.8 °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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