Bay of Islands Weather Forecast

    • 10
    • 19

    Shower

    • 11
    • 19

    Shower

    • 11
    • 18

    Shower

    • 12
    • 18

    Shower

    • 11
    • 17

    Cloudy

    • 10
    • 18

    Cloudy

    • 9
    • 23

    Partly cloudy

Today 21 Dec South West

Cloudy. Slight chance of a shower near the Otways, near zero chance elsewhere. Winds southwesterly 15 to 25 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots in the far east.
Seas
1.5 metres, increasing to 2 metres in the far east.
1st Swell
Southwesterly around 1 metre.
Weather
Cloudy.
Weather Situation
A low pressure system lies over eastern Victoria and Bass Strait and is expected to deepen as it moves southeast into the Tasman Sea by late Sunday. A high pressure ridge then builds across Victoria and Bass Strait during Monday. A weak cold front crosses Bass Strait during late Monday and early Tuesday with the ridge re-establishing itself over Bass Strait from Tuesday to Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Bay of Islands Temperature Statistics View More

December Temperature

Warrnambool Airport (45km)

  • Lowest 12 December, 2025

    3.7 °C

  • Average December

    15.2 °C

  • Highest 18 December, 2025

    34.7 °C

Climate (2020–Present)

Warrnambool Airport (45km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.4 °C

  • Average High 2020–2025

    19 °C
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