Cat Island Weather Forecast

    • 14
    • 16

    Partly cloudy

    • 16
    • 18

    Windy

    • 17
    • 18

    Storm

    • 14
    • 16

    Windy

    • 12
    • 15

    Windy

    • 13
    • 15

    Partly cloudy

    • 14
    • 16

    Partly cloudy

Today 11 Dec Furneaux Islands

Mostly sunny. Winds west to southwesterly 15 to 20 km/h shifting easterly 15 to 25 km/h during the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching the low 20s.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
West to southwesterly 15 to 20 knots turning south to southeasterly early in the morning then tending northeast to southeasterly in the middle of the day.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
South to southwesterly below 1 metre.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cat Island Temperature Statistics View More

December Temperature

Flinders Island Airport (34km)

  • Lowest 2 December, 2025

    6.4 °C

  • Average December

    14.9 °C

  • Highest 4 December, 2025

    29 °C

Climate (2020–Present)

Flinders Island Airport (34km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    18.3 °C
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