Decres Bay Weather Forecast
- 5
- 14
Showers. Windy
- 7
- 16
Possible shower. Wind easing
- 5
- 19
Showers increasing
- 6
- 17
Shower or two
- 6
- 17
Partly cloudy
- 6
- 17
Partly cloudy
- 6
- 18
Cloudy
Today 9 Aug West Coast
Cloudy. Very high chance of showers, with possible small hail west of Nullarbor during the morning and afternoon. The chance of a thunderstorm this morning. Damaging winds possible south of Streaky Bay from late morning. Winds westerly 35 to 50 km/h turning southwesterly 30 to 45 km/h in the evening. Daytime maximum temperatures around 13.
Upper West Coastal Waters
Fowlers Bay to Elliston- Wind
- West to northwesterly 20 to 30 knots turning southwesterly 25 to 30 knots during the morning. Winds reaching up to 35 knots south of Streaky Bay during the afternoon and evening.
- Seas
- 2 to 3 metres, increasing to 2.5 to 4 metres south of Streaky Bay during the morning.
- 1st Swell
- Southwesterly 2 to 3 metres, increasing to 3 to 4 metres during the afternoon.
- Weather
- Cloudy. Near 100% chance of showers. The chance of a thunderstorm this morning.
- Weather Situation
- A vigorous cold front is moving across the central SA this morning and then across remaining eastern parts of the State during the afternoon and early evening. A high pressure system moves just to the north on Monday, ahead of another cold front forecast to move across South Australia on Tuesday.
Decres Bay Temperature Statistics View More
August Temperature
Ceduna Airport (9km)
Lowest 4 August, 2026
-1.6 °CAverage August
11.4 °CHighest 4 August, 2026
20.1 °C
Climate (2021–2026)
Ceduna Airport (9km)
Average Low 2021–2026
10.9 °CAverage 2021–2026
16.8 °CAverage High 2021–2026
23.7 °C