Trefoil Island Weather Forecast

    • 11
    • 14

    Shower

    • 10
    • 13

    Shower

    • 10
    • 13

    Windy

    • 10
    • 13

    Shower

    • 11
    • 14

    Shower

    • 9
    • 13

    Shower

    • 8
    • 13

    Shower

Today 20 Aug North West Coast

Cloudy. Slight chance of a shower. Winds west to northwesterly 15 to 20 km/h.

Far Northwest Coastal Waters

Sandy Cape to Stanley including King Island
Wind
Northwesterly 10 to 15 knots, reaching up to 20 knots offshore.
Seas
Around 1 metre, increasing to 1 to 1.5 metres south of King Island.
1st Swell
Westerly 1 to 2 metres, increasing to 2.5 to 3 metres south of King Island.
Weather
Partly cloudy.
Weather Situation
A series of troughs and fronts embedded in a westerly flow are expected to cross Tasmania over the coming days. A high pressure system to the north of Tasmania brings stable conditions from late Saturday before it moves into the Tasman Sea on Sunday. A cold front then approaches Tasmania from the west on Monday, directing a northwesterly flow over the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Trefoil Island Temperature Statistics View More

August Temperature

Smithton Aerodrome (40km)

  • Lowest 1 August, 2026

    1.4 °C
  • Average August

    10.1 °C
  • Highest 10 August, 2026

    16 °C

Climate (2021–2026)

Smithton Aerodrome (40km)

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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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