Trefoil Island Weather Forecast

    • 11
    • 15

    Cloudy

    • 9
    • 18

    Partly cloudy

    • 12
    • 22

    Partly cloudy

    • 13
    • 18

    Shower

    • 13
    • 17

    Shower

    • 12
    • 16

    Shower

    • 12
    • 16

    Shower

Today 16 Dec North West Coast

Mostly clear. Winds southwesterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.

Far Northwest Coastal Waters

Sandy Cape to Stanley including King Island
Wind
West to southwesterly about 10 knots, reaching up to 20 knots east of King Island during the afternoon and evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres east of King Island.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system in Bass Strait will maintain a ridge across Tasmania as it drifts into the Tasman Sea on Wednesday. A trough will cross over the state on Thursday with a broad low pressure system developing off the west coast while a weak ridge slides along the south and the east on Friday. On Saturday the low pressure system will move to the south with an associated trough crossing the state.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Trefoil Island Temperature Statistics View More

December Temperature

Marrawah (30km)

  • Lowest 1 December, 2025

    7.3 °C

  • Average December

    12.9 °C

  • Highest 13 December, 2025

    19.8 °C

Climate (2020–Present)

Marrawah (30km)

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  • Average Low 2020–2025

    9.7 °C

  • Average 2020–2025

    12.6 °C

  • Average High 2020–2025

    17 °C
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