The Haystack Weather Forecast
- 9
- 17
Windy
- 6
- 13
Windy
- 9
- 14
Shower
- 7
- 12
Shower
- 7
- 14
Shower
- 9
- 15
Shower
- 8
- 15
Shower
Today 19 Sep South West
Partly cloudy. Very high chance of showers, most likely during this afternoon and evening. Snow falling above 1100 metres. The chance of a thunderstorm near the coast during this afternoon and evening, possibly severe with damaging winds late this afternoon and evening. Possible small hail later tonight. Damaging winds possible near the Grampians. Winds northerly 20 to 30 km/h turning west to northwesterly 25 to 40 km/h during the morning. Daytime maximum temperatures around 18.
West Victoria Coastal Waters
SA-Vic Border to Cape Otway- Wind
- Northwesterly 20 to 30 knots tending westerly 25 to 30 knots in the late afternoon. Winds between Portland and Warrnambool may reach up to 35 knots at times.
- Seas
- 1 to 1.5 metres, increasing to 2 to 3 metres around midday.
- 1st Swell
- Westerly 2 to 3 metres, increasing to 3 to 5 metres by early evening.
- Weather
- Partly cloudy. 95% chance of showers. The chance of a thunderstorm from the late morning. Possible small hail in the evening.
- Weather Situation
- A weak high pressure system lies over the Tasman Sea, while a cold front approaching from the west will move across Bass Strait this afternoon and evening. Several other fronts will follow over the coming days. A new ridge of high pressure will develop south of the Bight early next week.
The Haystack Temperature Statistics View More
September Temperature
Cape Otway (49km)
Lowest 6 September, 2025
6.9 °CAverage September
12.5 °CHighest 15 September, 2025
24.3 °C
Climate (2020–Present)
Cape Otway (49km)
Average Low 2020–2025
11.7 °CAverage 2020–2025
14.2 °CAverage High 2020–2025
17.4 °C