Merri Island Weather Forecast
- 11
- 18
Showers
- 12
- 20
Showers
- 12
- 18
Shower or two
- 10
- 20
Showers
- 11
- 17
Shower or two
- 9
- 18
Partly cloudy
- 7
- 19
Possible shower
Today 13 Apr Warrnambool
Cloudy. Very high chance of showers, becoming less likely in the late morning. Winds west to southwesterly 20 to 30 km/h becoming light in the late evening.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Southwesterly 15 to 20 knots, reaching up to 25 knots in the east during the morning. Winds tending westerly in the early afternoon.
- Seas
- 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly 4 metres, decreasing to 3 metres during the morning.
- Weather
- Cloudy. 80% chance of showers.
- Weather Situation
- A high pressure system in the Bight is directing a ridge of high pressure over northern Victoria into early this week, while a mostly westerly flow continues in the south. A cold front is expected to enter Victoria early Wednesday, briefly weakening the ridge of high pressure. Another cold front will follow later in the week.
Merri Island Temperature Statistics View More
April Temperature
Warrnambool Airport (12km)
Lowest 5 April, 2026
3 °CAverage April
14 °CHighest 9 April, 2026
25.3 °C
Climate (2021–Present)
Warrnambool Airport (12km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
19.1 °C