Sinclair Island Weather Forecast

    • 20
    • 21

    Partly cloudy

    • 19
    • 21

    Partly cloudy

    • 20
    • 21

    Partly cloudy

    • 18
    • 18

    Partly cloudy

    • 17
    • 19

    Partly cloudy

    • 18
    • 19

    Partly cloudy

    • 18
    • 21

    Sunny

Today 10 Dec West Coast

The chance of a thunderstorm west of Ceduna in the morning and early afternoon. Mostly sunny afternoon. Winds southeasterly 25 to 40 km/h. Daytime maximum temperatures 30 to 38.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots early in the morning and again in the evening.
Seas
1.5 to 2 metres.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Bight extends a ridge of high pressure over most of the state and will persist over southern SA during today and Thursday. Meanwhile, a trough of low pressure over the far northwest is expected to move along the northern border today. The trough will extend further south on Thursday then move eastwards across the west and south of SA on Friday. Another ridge of high pressure will move over the south over the weekend and the trough will move slowly northeastwards.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sinclair Island Temperature Statistics View More

December Temperature

Ceduna Airport (66km)

  • Lowest 8 December, 2025

    6.4 °C

  • Average December

    20.4 °C

  • Highest 3 December, 2025

    38.2 °C

Climate (2020–Present)

Ceduna Airport (66km)

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  • Average Low 2020–2025

    10.7 °C

  • Average 2020–2025

    16.8 °C

  • Average High 2020–2025

    23.7 °C
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