London Arch Weather Forecast
- 9
- 18
Storm
- 7
- 13
Shower
- 9
- 15
Shower
- 8
- 13
Shower
- 7
- 15
Shower
- 9
- 15
Shower
- 8
- 16
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 15 to 20 knots increasing to 20 to 30 knots in the morning then tending westerly 25 to 30 knots in the late afternoon. Winds between Portland and Warrnambool may reach up to 35 knots at times.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 2 to 3 metres around midday.
- 1st Swell
- Westerly 2 to 2.5 metres, increasing to 3 to 5 metres during the afternoon.
- Weather
- Partly cloudy. 95% chance of showers. The chance of a thunderstorm from late this morning. Possible small hail this 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.
London Arch Temperature Statistics View More
September Temperature
Warrnambool Airport (56km)
Lowest 18 September, 2025
0.9 °CAverage September
11 °CHighest 15 September, 2025
23.3 °C
Climate (2020–Present)
Warrnambool Airport (56km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
13.4 °CAverage High 2020–2025
19.1 °C