Merri Island Weather Forecast

    • 11
    • 16

    Possible shower

    • 8
    • 17

    Partly cloudy

    • 8
    • 17

    Showers

    • 9
    • 17

    Showers easing

    • 8
    • 17

    Partly cloudy

    • 6
    • 17

    Partly cloudy

    • 7
    • 17

    Shower or two

Today 17 May Warrnambool

Partly cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds southwesterly 15 to 25 km/h tending southerly 15 to 20 km/h in the late afternoon then becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southerly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge over the far east weakens as a slow moving trough approaches the western border. This trough will slowly cross over the state, reaching central parts late today and clearing eastwards into the Tasman by Monday afternoon. A new weak ridge develops in the west following the trough but is pushed over the north as a series of weak cold fronts cross to the south early next week. By the middle of the weak the high pressure ridge is expected to extend broadly across Victoria.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

May Temperature

Warrnambool Airport (12km)

  • Lowest 12 May, 2026

    4.8 °C
  • Average May

    14 °C
  • Highest 1 May, 2026

    28.3 °C

Climate (2021–Present)

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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