Merri Island Weather Forecast

    • 8
    • 18

    Shower or two

    • 9
    • 18

    Shower or two

    • 10
    • 19

    Shower or two

    • 11
    • 18

    Showers easing

    • 8
    • 17

    Possible shower

    • 10
    • 17

    Shower or two

    • 9
    • 16

    Showers

Today 24 May Warrnambool

Cloudy. Medium chance of showers, most likely late this afternoon and evening. Light winds becoming northeasterly 15 to 20 km/h in the morning then becoming light in the early afternoon.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northeasterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A ridge of high pressure extends over Victoria from a high pressure system centred over the Tasman Sea. The ridge will weaken over the weekend as the high moves away to the southeast and a low pressure system develops over the south of SA. This low is expected to move inland across southern SA on Monday and early Tuesday then move over NSW during Tuesday and extend a trough over Victoria. The low and trough will move slowly eastwards on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

May Temperature

Warrnambool Airport (12km)

  • Lowest 22 May, 2026

    1.1 °C

  • Average May

    13 °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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