Island Arch Weather Forecast

    • 8
    • 20

    Partly cloudy

    • 10
    • 18

    Shower

    • 9
    • 17

    Windy

    • 9
    • 21

    Shower

    • 11
    • 18

    Shower

    • 8
    • 19

    Partly cloudy

    • 8
    • 19

    Partly cloudy

Today 5 Dec South West

Mostly clear. Slight chance of a shower in the northwest later tonight. Near zero chance of rain elsewhere. Winds west to southwesterly 15 to 25 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 metres.
Weather
Partly cloudy.
Weather Situation
A trough over will linger over the northeast before moving over the Tasman Sea on Saturday. A cold front moves over the south of the State on Saturday. A ridge of high pressure then builds over the state during Sunday, lingering on Monday, before another cold front clips the south on Monday. A new ridge moves over the State on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Island Arch Temperature Statistics View More

December Temperature

Cape Otway (44km)

  • Lowest 1 December, 2025

    9.1 °C

  • Average December

    17 °C

  • Highest 3 December, 2025

    27 °C

Climate (2020–Present)

Cape Otway (44km)

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  • Average Low 2020–2025

    11.7 °C

  • Average 2020–2025

    14.2 °C

  • Average High 2020–2025

    17.3 °C
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