Merri Island Weather Forecast
- 7
- 14
Showers
- 6
- 13
Showers. Becoming windy
- 9
- 17
Showers. Wind easing
- 10
- 15
Showers. Windy
- 8
- 14
Showers
- 8
- 15
Showers
- 9
- 17
Showers easing
Today 31 May Warrnambool
Cloudy. Very high chance of showers, becoming less likely at night. Winds westerly 25 to 40 km/h decreasing to 15 to 25 km/h in the evening then tending northwesterly 15 to 20 km/h in the late evening.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- West to southwesterly 15 to 25 knots, reaching up to 30 knots in the late morning and early afternoon.
- Seas
- 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres later in the evening.
- 1st Swell
- Westerly 3 metres, tending southwesterly 3 to 4 metres around midday.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A couple of weak cold fronts will move across Victoria today before weak ridge of high pressure briefly stretches over the State later today and into early Monday. A vigorous low pressure system moves over the Bight on Monday will track eastwards with a strong associated cold front entering western Victoria early Tuesday. This low is expected to track through Bass Strait on Tuesday and Wednesday, bringing a series of troughs in the mid week.
Merri Island Temperature Statistics View More
May Temperature
Warrnambool Airport (12km)
Lowest 22 May, 2026
1.1 °CAverage May
12.9 °CHighest 1 May, 2026
28.3 °C
Climate (2021–Present)
Warrnambool Airport (12km)
Average Low 2021–2026
8.8 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
19.1 °C