Decres Bay Weather Forecast

    • 5
    • 19

    Showers developing

    • 5
    • 17

    Shower or two

    • 6
    • 17

    Cloudy

    • 5
    • 17

    Cloudy

    • 6
    • 17

    Possible shower

    • 5
    • 17

    Partly cloudy

    • 4
    • 17

    Partly cloudy

Today 11 Aug West Coast

Partly cloudy. Very high chance of showers, most likely during this afternoon and evening. Winds north to northwesterly 25 to 35 km/h turning west to southwesterly in the early afternoon. Daytime maximum temperatures between 15 and 19.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
North to northwesterly 20 to 25 knots, reaching up to 30 knots during the day. Winds shifting southwesterly in the early afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm south of Streaky Bay in the late morning and afternoon.
Weather Situation
A high pressure system is located just to the northeast of the state, ahead of a cold front forecast to move across the state from Tuesday and early Wednesday. A ridge of high pressure then pushes into the west of the state on Wednesday, with the associated high moving over the rest of SA on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Decres Bay Temperature Statistics View More

August Temperature

Ceduna Airport (9km)

  • Lowest 4 August, 2026

    -1.6 °C

  • Average August

    11.8 °C

  • Highest 8 August, 2026

    21.1 °C

Climate (2021–2026)

Ceduna Airport (9km)

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  • Average Low 2021–2026

    10.9 °C

  • Average 2021–2026

    16.8 °C

  • Average High 2021–2026

    23.7 °C
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