Merri Island Weather Forecast
- 10
- 15
Partly cloudy
- 9
- 14
Shower or two
- 7
- 14
Cloudy
- 6
- 19
Mostly sunny
- 8
- 22
Mostly sunny
- 10
- 22
Mostly sunny
- 11
- 24
Sunny
Today 12 Oct Warrnambool
Partly cloudy. Slight chance of a shower, most likely later tonight. Winds westerly 25 to 35 km/h decreasing to 20 to 25 km/h in the late evening.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Westerly 20 to 30 knots.
- Seas
- 2 to 2.5 metres.
- 1st Swell
- West to southwesterly 3 metres inshore, increasing to 3 to 4 metres offshore.
- Weather
- Partly cloudy.
- Weather Situation
- A trough over far eastern Victoria will move over the Tasman Sea this evening and a cold front will move across Tasmania and Bass Strait on Tuesday morning. A cool southwesterly airstream will follow as a high pressure system drifts eastwards across the Bight. By Thursday the high will be centred near Tasmania and will direct a warmer east to northeasterly flow over Victoria. The high will move over the Tasman Sea on Friday.
Merri Island Temperature Statistics View More
October Temperature
Warrnambool Airport (12 km)
Lowest 8 October, 2026
3.5 °CAverage October
12.7 °CHighest 9 October, 2026
25.1 °C
Climate (2021–2026)
Warrnambool Airport (12 km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
19.2 °C