Grassy Harbour Weather Forecast

    • 11
    • 21

    Partly cloudy

    • 16
    • 23

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 11
    • 18

    Showers. Becoming windy

    • 9
    • 16

    Possible shower

    • 11
    • 17

    Showers. Windy

    • 10
    • 18

    Partly cloudy

Today 3 Dec King Island

Partly cloudy. Winds northwesterly 20 to 30 km/h.

Far Northwest Coastal Waters

Sandy Cape to Stanley including King Island
Wind
Northwesterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1.5 metres south of King Island.
1st Swell
Westerly 1.5 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea directs a northwesterly flow over the state, strengthening ahead of a weak cold front to cross Tasmania during Thursday. A weak ridge passes over the state on Friday, before another cold front is forecast to cross the state on Saturday. A westerly flow is then expected to develop over Tasmania on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grassy Harbour Temperature Statistics View More

December Temperature

King Island Airport (25km)

  • Lowest 1 December, 2025

    8.9 °C

  • Average December

    12.1 °C

  • Highest 1 December, 2025

    15.8 °C

Climate (2020–Present)

King Island Airport (25km)

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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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