Decres Bay Weather Forecast

    • 16
    • 34

    Sunny

    • 18
    • 32

    Morning storm. Showers

    • 12
    • 23

    Partly cloudy

    • 9
    • 25

    Sunny

    • 11
    • 34

    Mostly sunny

    • 14
    • 26

    Mostly sunny

    • 11
    • 23

    Possible shower

Today 18 Oct West Coast

Mostly sunny. Medium chance of showers west of Nullarbor, most likely in the late afternoon and evening. Near zero chance of rain elsewhere. The chance of a thunderstorm west of Ceduna in the afternoon and evening. Thunderstorms possibly severe with damaging winds west of Nullarbor in the afternoon and evening. Winds north to northeasterly 25 to 40 km/h. Daytime maximum temperatures 33 to 39.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
North to northeasterly 10 to 15 knots tending east to northeasterly 15 to 20 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Sunny day. The chance of a thunderstorm at night.
Weather Situation
A slow-moving high pressure system over the Tasman Sea extends a ridge over eastern SA. A trough of low pressure over WA is expected to move into western SA later today and over southeastern parts later Monday, while a weakening cold front crosses the Bight. The trough lingers in the east through the middle of the week as a weak high pressure system forms in the Bight.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Decres Bay Temperature Statistics View More

October Temperature

Ceduna Airport (9 km)

  • Lowest 3 October, 2026

    3.9 °C

  • Average October

    17.4 °C

  • Highest 8 October, 2026

    36.4 °C

Climate (2021–2026)

Ceduna Airport (9 km)

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  • Average Low 2021–2026

    10.9 °C

  • Average 2021–2026

    16.9 °C

  • Average High 2021–2026

    23.7 °C
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