Merri Island Weather Forecast

    • 12
    • 20

    Partly cloudy

    • 11
    • 17

    Shower or two. Windy

    • 10
    • 16

    Cloudy

    • 9
    • 19

    Partly cloudy

    • 9
    • 29

    Sunny

    • 14
    • 29

    Mostly sunny

    • 14
    • 25

    Partly cloudy

Today 13 Dec Warrnambool

Partly cloudy. Winds south to southwesterly 15 to 20 km/h turning westerly in the late evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southerly 15 to 20 knots turning westerly in the late afternoon. Winds reaching up to 25 knots in the far west in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 2 metres during the morning.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

December Temperature

Warrnambool Airport (12km)

  • Lowest 12 December, 2025

    3.7 °C

  • Average December

    14 °C

  • Highest 4 December, 2025

    30.9 °C

Climate (2020–Present)

Warrnambool Airport (12km)

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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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