Merri Island Weather Forecast

    • 4
    • 14

    Shower or two

    • 3
    • 15

    Partly cloudy

    • 7
    • 16

    Showers

    • 8
    • 14

    Rain

    • 7
    • 13

    Rain easing. Windy

    • 7
    • 16

    Showers. Becoming windy

    • 6
    • 13

    Showers. Windy

Today 6 Aug Warrnambool

Partly cloudy. High chance of showers, most likely in the afternoon and evening. Winds northwesterly 15 to 20 km/h tending westerly 15 to 25 km/h in the late afternoon then becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northwesterly 15 to 20 knots turning southwesterly 10 to 15 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing to 1 metre by early evening.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A low pressure system and associated trough centred over the Tasman Sea will move away from the state as a high pressure system to the north extends a ridge over the west. The ridge will slowly move eastwards across the state through to the end of the week. A weak trough will clip parts of the south during today. The high pressure system will move out over the Tasman Sea on Saturday ahead of a vigorous cold front expected to cross the state on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

August Temperature

Warrnambool Airport (12km)

  • Lowest 2 August, 2026

    1.4 °C

  • Average August

    8.3 °C

  • Highest 2 August, 2026

    15.2 °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

    19.2 °C
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