Merri Island Weather Forecast
- 4
- 16
Mostly clear
- 7
- 16
Possible shower
- 5
- 15
Cloudy
- 8
- 15
Cloudy
- 6
- 17
Partly cloudy
- 9
- 19
Showers
- 9
- 16
Shower or two
Today 27 Aug Warrnambool
Partly cloudy. Light winds.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Northwesterly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres in the far west.
- 1st Swell
- West to southwesterly 1.5 to 2.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure centre will persist across the State, weakening slightly on Friday as the tail end of a cold front clips southern parts of the State. A new ridge builds eastwards across the State from Saturday and moves slowly eastwards on Sunday and Monday.
Merri Island Temperature Statistics View More
August Temperature
Warrnambool Airport (12km)
Lowest 2 August, 2026
1.4 °CAverage August
10.5 °CHighest 17 August, 2026
18.2 °C
Climate (2021–2026)
Warrnambool Airport (12km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
19.2 °C