Decres Bay Weather Forecast

    • 11
    • 24

    Possible shower

    • 10
    • 29

    Mostly sunny

    • 16
    • 34

    Mostly sunny

    • 19
    • 33

    Late shower or two

    • 12
    • 24

    Showers easing

    • 11
    • 24

    Showers

    • 9
    • 19

    Partly cloudy

Today 26 Sep West Coast

Cloudy. High chance of showers west of Nullarbor, medium chance elsewhere. The chance of a thunderstorm. Winds southeasterly 25 to 35 km/h. Daytime maximum temperatures 21 to 28.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots offshore during the day.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Cloudy. 70% chance of showers. The chance of a thunderstorm.
Weather Situation
A trough extends over central Australia. A strong high pressure system extends a ridge across southern SA this weekend and pushes the trough into northern SA. The high moves into the Tasman Sea early next week, with the trough shifting west towards the WA border.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Decres Bay Temperature Statistics View More

September Temperature

Ceduna Airport (9km)

  • Lowest 17 September, 2026

    1.8 °C

  • Average September

    15.3 °C

  • Highest 19 September, 2026

    32.3 °C

Climate (2021–2026)

Ceduna Airport (9km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    10.9 °C

  • Average 2021–2026

    16.8 °C

  • Average High 2021–2026

    23.7 °C
Get WillyWeather+ to remove ads