Decres Bay Weather Forecast

    • 10
    • 22

    Possible shower

    • 10
    • 23

    Sunny

    • 8
    • 23

    Mostly sunny

    • 9
    • 24

    Sunny

    • 13
    • 25

    Partly cloudy

    • 9
    • 18

    Cloudy

    • 7
    • 21

    Partly cloudy

Today 28 Aug West Coast

Partly cloudy. Medium chance of showers west of Ceduna, becoming less likely in the evening. Near zero chance of rain elsewhere. The chance of a thunderstorm west of Nullarbor in the morning and afternoon. Thunderstorms possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding west of Nullarbor in the afternoon and evening. Winds north to northeasterly 15 to 25 km/h tending east to northeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
North to northeasterly 10 to 15 knots tending east to northeasterly below 10 knots in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over NSW will weaken and merge with another high pressure system to the south of SA today as a low pressure trough hovers over WA close to the SA border. The high to the south will move slowly east over the weekend to be centred over Victoria by Monday, strengthening a ridge over South Australia into next week.
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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

    12 °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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