Halfmoon Bay Weather Forecast

    • 9
    • 16

    Showers. Very windy

    • 7
    • 14

    Showers increasing. Windy

    • 9
    • 15

    Showers. Windy

    • 8
    • 13

    Showers easing. Windy

    • 8
    • 15

    Shower or two

    • 10
    • 15

    Shower or two

    • 10
    • 15

    Showers. Windy

Today 19 Sep King Island

Partly cloudy. Very high chance of showers, most likely late this afternoon and evening. The chance of a thunderstorm during this afternoon and evening, possibly severe with damaging winds. Possible small hail later tonight. Winds northerly 15 to 25 km/h turning westerly 35 to 50 km/h in the evening. Daytime maximum temperatures around 16.

Far Northwest Coastal Waters

Sandy Cape to Stanley including King Island
Wind
Northwesterly 25 to 35 knots turning westerly 30 to 35 knots in the evening.
Seas
2 to 3 metres, increasing to 2.5 to 4 metres south of King Island.
1st Swell
Westerly 2 to 4 metres, increasing to 4 to 6 metres later in the evening.
Weather
Cloudy. 90% chance of showers, with possible small hail later tonight. The chance of a thunderstorm.
Weather Situation
A cold front moves over the state this evening. A westerly flow develops Saturday as a ridge builds over NSW. A cold front is expected to approach the state from the west during Sunday morning and cross during the day. A weak ridge moves over on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Halfmoon Bay Temperature Statistics View More

September Temperature

King Island Airport (8km)

  • Lowest 6 September, 2025

    4.8 °C

  • Average September

    11.9 °C

  • Highest 15 September, 2025

    21 °C

Climate (2020–Present)

King Island Airport (8km)

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  • Average Low 2020–2025

    10.1 °C

  • Average 2020–2025

    13.5 °C

  • Average High 2020–2025

    17.5 °C
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