Mouth Flat Beach Weather Forecast
- 16
- 22
Cloudy
- 13
- 21
Shower
- 13
- 21
Shower
- 12
- 21
Shower
- 13
- 19
Cloudy
- 13
- 20
Cloudy
- 13
- 20
Cloudy
Today 19 Dec Kangaroo Island
Cloudy. Winds southerly 15 to 25 km/h.
South Central Coastal Waters
- Wind
- Southerly 10 to 15 knots.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly 2 metres.
- Weather
- Cloudy.
- Weather Situation
- A broad trough of low pressure lies over east and northern parts of the State. This area of low pressure is expected to linger over the northeast Saturday before moving east Sunday with the next low pressure system that develops south of the bight. A high pressure ridge then extends over the west and south during Sunday, and throughout by Monday. A persistent high pressure ridge remains over the State and Coastal Waters during Tuesday and Wednesday.
Mouth Flat Beach Temperature Statistics View More
December Temperature
Cape Willoughby (17km)
Lowest 2 December, 2025
10.7 °CAverage December
17.6 °CHighest 17 December, 2025
33 °C
Climate (2020–Present)
Cape Willoughby (17km)
Average Low 2020–2025
13.3 °CAverage 2020–2025
15.3 °CAverage High 2020–2025
18.4 °C