Decres Bay Weather Forecast

    • 7
    • 17

    Partly cloudy

    • 5
    • 18

    Morning fog

    • 5
    • 21

    Partly cloudy

    • 8
    • 18

    Rain

    • 8
    • 17

    Possible morning shower

    • 6
    • 19

    Partly cloudy

    • 8
    • 22

    Shower or two

Today 21 Aug West Coast

Partly cloudy. Winds south to southwesterly 15 to 20 km/h becoming light in the evening.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
South to southwesterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 3 metres.
Weather
Cloudy.
Weather Situation
A high pressure system over the Bight slowly drifts over SA on Saturday to be centred over the eastern states by Sunday. A weak front embedded in the southwesterly flow around the high, clips the southeast early Saturday morning. A low pressure system and associated trough move into the far west later Sunday and then moves across the state on Monday an d out over the eastern states by later Tuesday. Another ridge of high pressure moves into the west later Tuesday.
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  • 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

    11.7 °C

  • Highest 18 August, 2026

    24.7 °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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