Half Moon Bay Weather Forecast

    • 10
    • 20

    Showers increasing. Windy

    • 6
    • 13

    Morning shower or two

    • 1
    • 14

    Partly cloudy

    • 4
    • 15

    Mostly sunny

    • 6
    • 15

    Cloudy

    • 10
    • 19

    Shower or two

    • 9
    • 16

    Shower or two

Today 20 Sep North West Coast

Partly cloudy. Very high chance of showers in the west, medium chance elsewhere. Possible small hail in the west at night. Damaging winds possible about higher ground. Winds northwest to southwesterly 15 to 20 km/h tending north to northwesterly 30 to 45 km/h before dawn then turning westerly in the early afternoon. Overnight temperatures falling to between 5 and 11 with daytime temperatures reaching around 20.

Far Northwest Coastal Waters

Sandy Cape to Stanley including King Island
Wind
North to northwesterly 20 to 30 knots turning west to southwesterly 25 to 30 knots during the afternoon and evening.
Seas
1 to 2 metres, increasing to 2 to 4 metres during the morning.
1st Swell
West to southwesterly 1.5 to 2.5 metres, increasing to 2.5 to 4 metres south of King Island.
Weather
Sunny morning. 70% chance of showers in the late afternoon and evening. Possible small hail south of King Island at night.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Half Moon Bay Temperature Statistics View More

September Temperature

Smithton Aerodrome (19km)

  • Lowest 12 September, 2026

    1.2 °C

  • Average September

    10.9 °C

  • Highest 6 September, 2026

    17.3 °C

Climate (2021–2026)

Smithton Aerodrome (19km)

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  • Average Low 2021–2026

    8 °C

  • Average 2021–2026

    12.6 °C

  • Average High 2021–2026

    17.7 °C
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