Merri Island Weather Forecast

    • 9
    • 14

    Showers increasing

    • 9
    • 15

    Showers easing

    • 8
    • 16

    Shower or two

    • 9
    • 13

    Showers

    • 7
    • 13

    Shower or two

    • 7
    • 13

    Shower or two

    • 4
    • 14

    Cloudy

Today 25 Jul Warrnambool

Cloudy. Very high chance of showers, most likely in the late afternoon and evening. Winds westerly 20 to 30 km/h decreasing to 15 to 20 km/h in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Westerly 15 to 20 knots, reaching up to 25 knots in the east in the late morning and early afternoon.
Seas
1.5 to 2 metres.
1st Swell
Southwesterly 3 to 4 metres, decreasing to 3 metres during the afternoon.
Weather
Cloudy. 90% chance of showers.
Weather Situation
A westerly airstream will weaken on Saturday as a ridge of high pressure begins to develop over the north, extending across remaining parts during Sunday. The high pressure system will drift into the Tasman Sea on Monday as a cold front approaches from the west. The front is expected to cross Victoria on Tuesday with a cool southwesterly airstream following into Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

July Temperature

Warrnambool Airport (12km)

  • Lowest 7 July, 2026

    -1 °C

  • Average July

    9 °C

  • Highest 1 July, 2026

    16.5 °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

    19.2 °C
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