Merri Island Weather Forecast

    • 10
    • 15

    Shower or two

    • 9
    • 14

    Shower or two

    • 4
    • 15

    Shower or two

    • 8
    • 14

    Cloudy

    • 9
    • 15

    Partly cloudy

    • 5
    • 17

    Partly cloudy

    • 7
    • 20

    Partly cloudy

Today 6 Sep Warrnambool

Cloudy. High chance of showers, most likely at night. Winds west to southwesterly 25 to 35 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 25 knots, reaching up to 30 knots in the far east early in the morning. Winds turning westerly 15 to 20 knots in the morning.
Seas
1.5 to 2.5 metres, decreasing to 1 metre during the morning.
1st Swell
West to southwesterly 3 to 4 metres, decreasing to 3 metres by early evening.
Weather
Cloudy. 60% chance of showers.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

September Temperature

Warrnambool Airport (12km)

  • Lowest 1 September, 2026

    5.4 °C

  • Average September

    12 °C

  • Highest 1 September, 2026

    18.2 °C

Climate (2021–2026)

Warrnambool Airport (12km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    19.1 °C
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