Willyama Beach Weather Forecast
- 15
- 21
Showers. Possible storm
- 13
- 20
Shower or two
- 12
- 25
Possible shower or storm
- 13
- 17
Possible shower
- 11
- 17
Possible shower
- 10
- 17
Cloudy
- 11
- 18
Cloudy
Today 9 Oct Yorke Peninsula
Cloudy. Very high chance of showers, becoming less likely this evening. The chance of a thunderstorm from late this morning, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northerly 25 to 35 km/h increasing to 30 to 45 km/h in the middle of the day then turning westerly 25 to 35 km/h in the late afternoon. Daytime maximum temperatures in the low to mid 20s.
Investigator Strait Coastal Waters
- Wind
- Northerly 15 to 25 knots, reaching up to 30 knots through the Backstairs Passage in the late morning and early afternoon. Winds turning westerly 20 to 25 knots in the early afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres around midday.
- 1st Swell
- West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
- Weather
- Cloudy. Near 100% chance of showers. The chance of a thunderstorm from late this morning with possible squalls.
- Weather Situation
- A trough and cold front over western SA will track eastwards across the rest of SA on Friday before a weak high briefly establishes in the north on Saturday. Another series of troughs and cold fronts are expected to enter western SA early on Sunday, crossing the state then clearing in the east by the end of Monday.
Willyama Beach Temperature Statistics View More
October Temperature
Stenhouse Bay (4 km)
Lowest 5 October, 2026
11.7 °CAverage October
15.3 °CHighest 1 October, 2026
21 °C
Climate (2021–2026)
Stenhouse Bay (4 km)
Average Low 2021–2026
13.2 °CAverage 2021–2026
16.1 °CAverage High 2021–2026
20.5 °C