Mouth Flat Beach Weather Forecast
- 15
- 24
Partly cloudy
- 13
- 24
Partly cloudy
- 15
- 29
Partly cloudy
- 15
- 28
Partly cloudy
- 19
- 26
Shower
- 15
- 20
Cloudy
- 14
- 23
Partly cloudy
Today 18 Feb Kangaroo Island
Mostly clear. Winds west to southwesterly 20 to 30 km/h becoming light in the late evening.
South Central Coastal Waters
- Wind
- Westerly 15 to 20 knots decreasing to about 10 knots in the late evening.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre later in the evening.
- 1st Swell
- Southwesterly 3 to 4 metres.
- Weather
- Mostly clear.
- Weather Situation
- A ridge of high pressure across the south of SA will weaken during Saturday as a broad trough of low pressure extends across the west and north. The trough will move eastwards during Sunday and a cold front will move across the south. A broad area of low pressure will persist across the north early next week and a high pressure ridge will become established over waters to the south.
Mouth Flat Beach Temperature Statistics View More
February Temperature
Cape Willoughby (17km)
Lowest 2 February, 2026
14.4 °CAverage February
18.6 °CHighest 16 February, 2026
34.9 °C
Climate (2021–Present)
Cape Willoughby (17km)
Average Low 2021–2026
13.3 °CAverage 2021–2026
15.4 °CAverage High 2021–2026
18.4 °C