Grassy Bay Weather Forecast

    • 8
    • 14

    Showers. Windy

    • 7
    • 12

    Showers. Windy

    • 6
    • 13

    Partly cloudy

    • 6
    • 17

    Becoming cloudy

    • 12
    • 19

    Showers. Windy

    • 11
    • 16

    Showers. Wind easing

    • 8
    • 14

    Showers. Becoming windy

Today 3 Sep King Island

Cloudy. Very high chance of showers. Winds westerly 35 to 50 km/h. Overnight temperatures falling to around 8 with daytime temperatures reaching around 14.

Far Northwest Coastal Waters

Sandy Cape to Stanley including King Island
Wind
Westerly 25 to 30 knots.
Seas
2.5 to 3 metres, increasing to 2.5 to 4 metres south of King Island.
1st Swell
Westerly 2 to 3 metres, increasing to 4 to 5 metres south of King Island.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm south of King Island.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grassy Bay Temperature Statistics View More

September Temperature

King Island Airport (25km)

  • Lowest 2 September, 2025

    5.1 °C

  • Average September

    11.2 °C

  • Highest 1 September, 2025

    15.4 °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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