Merri Island Weather Forecast

    • 7
    • 18

    Showers

    • 11
    • 17

    Rain

    • 8
    • 16

    Showers

    • 7
    • 15

    Showers

    • 8
    • 15

    Showers easing

    • 8
    • 15

    Possible shower

    • 8
    • 15

    Shower or two

Today 18 Aug Warrnambool

Cloudy. High chance of showers. Winds northeasterly 20 to 30 km/h.

West Victoria Coastal Waters

SA-Vic Border to Cape Otway
Wind
Northeasterly 15 to 20 knots, reaching up to 25 knots in the far west in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres offshore.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A high pressure system in the Tasman Sea extends a ridge over most of the state. A weak front will move across South Australia on Tuesday and early Wednesday then will move over Victoria during Wednesday. A high pressure system and associated ridge will approach from the west on Thursday, and be centred over the state on Saturday, as a series of cold fronts move across Tasmania.
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

    9.9 °C

  • Highest 7 August, 2026

    15.5 °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