Decres Bay Weather Forecast

    • 9
    • 19

    Clear

    • 4
    • 23

    Sunny

    • 8
    • 30

    Sunny

    • 16
    • 31

    Partly cloudy

    • 12
    • 31

    Partly cloudy

    • 15
    • 32

    Partly cloudy

    • 17
    • 32

    Partly cloudy

Today 21 Sep West Coast

Clear. Winds southeasterly 15 to 20 km/h.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southeasterly 10 to 15 knots, reaching up to 20 knots south of Streaky Bay.
Seas
Around 1 metre, increasing to 1 to 1.5 metres inshore.
1st Swell
Southwesterly 3 metres, increasing to 3 to 4 metres south of Streaky Bay.
Weather
Clear.
Weather Situation
A high pressure system centred to the southeast will continue to move eastwards over Victoria and over the Tasman Sea on Tuesday. This high will continue to extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday. The trough will slip southeastwards over southern coasts during Thursday and Friday.
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  • 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

    14.8 °C

  • Highest 19 September, 2026

    32.3 °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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