Half Moon Bay (Jan Juc) Weather Forecast

    • 9
    • 14

    Mostly clear

    • 7
    • 15

    Cloud clearing

    • 5
    • 17

    Sunny

    • 8
    • 25

    Partly cloudy

    • 14
    • 24

    Possible shower

    • 11
    • 19

    Possible shower

    • 10
    • 20

    Partly cloudy

Today 21 Sep Geelong and Surf Coast

Partly cloudy. Winds southwesterly 20 to 30 km/h tending southerly 15 to 25 km/h in the middle of the day then becoming light in the late evening.

Central Victoria Coastal Waters

Cape Otway to Wilsons Promontory
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots in the far east in the late morning and early afternoon.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres around midday, then decreasing to 1 metre later in the evening.
1st Swell
Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres in the far west.
Weather
Mostly sunny.
Weather Situation
A cool southwesterly airstream will cross Victoria today as a high pressure system moves over waters south of the Bight, reaching western Bass Strait by tonight. The high will be located over the Tasman Sea by Tuesday night, with a warm northeasterly airstream continuing on Wednesday and Thursday as the high continues moving east.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Half Moon Bay (Jan Juc) Temperature Statistics View More

September Temperature

Aireys Inlet (21km)

  • Lowest 8 September, 2026

    5.4 °C

  • Average September

    13.1 °C

  • Highest 19 September, 2026

    25 °C

Climate (2021–2026)

Aireys Inlet (21km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    11.1 °C

  • Average 2021–2026

    14.2 °C

  • Average High 2021–2026

    18.9 °C
Get WillyWeather+ to remove ads