Mouth Flat Beach Weather Forecast
- 11
- 16
Cloudy
- 9
- 16
Shower
- 9
- 17
Shower
- 9
- 18
Partly cloudy
- 11
- 19
Partly cloudy
- 14
- 21
Shower
- 15
- 21
Partly cloudy
Today 25 Oct Kangaroo Island
Partly cloudy. Slight chance of a shower. Winds southwesterly 20 to 30 km/h turning westerly 15 to 20 km/h in the late evening. Daytime maximum temperatures around 17.
South Central Coastal Waters
- Wind
- Southwesterly 15 to 20 knots.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southwesterly 2.5 to 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A trough and cold front continue moving across the far northeast on Sunday. A ridge of high pressure will move into the west late Sunday and persist over much of southern SA through to mid-next week, as the associated high slowly drifts east across waters to the south. A trough and low pressure system may then develop near the WA border from late Wednesday.
Mouth Flat Beach Temperature Statistics View More
October Temperature
Cape Willoughby (17 km)
Lowest 13 October, 2026
10.6 °CAverage October
15.7 °CHighest 22 October, 2026
29.2 °C
Climate (2021–2026)
Cape Willoughby (17 km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
15.5 °CAverage High 2021–2026
18.5 °C