Merri Island Weather Forecast

    • 9
    • 14

    Partly cloudy

    • 3
    • 15

    Partly cloudy

    • 5
    • 19

    Sunny

    • 11
    • 23

    Partly cloudy

    • 14
    • 22

    Shower or two

    • 11
    • 16

    Shower or two

    • 9
    • 21

    Partly cloudy

Today 21 Sep Warrnambool

Partly cloudy. Slight chance of a shower early this morning. Winds southwesterly 20 to 30 km/h becoming light in the evening.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Southwesterly 15 to 25 knots decreasing to about 10 knots in the evening.
Seas
1.5 to 2.5 metres, decreasing to 1 metre around midday.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Partly cloudy.
Weather Situation
A cool southwesterly airstream will cross Victoria today as a high pressure system moves over waters south of the Bight, reaching western Bass Strait by tonight. The high will be located over the Tasman Sea by Tuesday night, with a warm northeasterly airstream continuing on Wednesday and Thursday as the high continues moving east.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merri Island Temperature Statistics View More

September Temperature

Warrnambool Airport (12km)

  • Lowest 8 September, 2026

    1 °C

  • Average September

    11.4 °C

  • Highest 19 September, 2026

    24 °C

Climate (2021–2026)

Warrnambool Airport (12km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    19.2 °C
Get WillyWeather+ to remove ads