Saint Peter Island Weather Forecast

    • 19
    • 19

    Partly cloudy

    • 17
    • 19

    Mostly sunny

    • 18
    • 19

    Partly cloudy

    • 17
    • 18

    Cloudy

    • 18
    • 19

    Partly cloudy

    • 17
    • 18

    Mostly sunny

    • 17
    • 20

    Mostly sunny

Today 19 Dec West Coast

Partly cloudy. The chance of a thunderstorm west of Nullarbor early this morning. Winds southerly 25 to 35 km/h. Daytime maximum temperatures 24 to 35.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southerly 15 to 20 knots turning southeasterly in the late evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening.
Weather
Cloudy.
Weather Situation
A trough of broad low pressure lies in the west. This area of low pressure is expected to slowly extend across the state from the west during today and tomorrow, before contracting to the far northeast on Sunday evening. Behind this, a ridge of high pressure moves over the west and south during Sunday, persisting throughout SA by late Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Peter Island Temperature Statistics View More

December Temperature

Ceduna Airport (19km)

  • Lowest 8 December, 2025

    6.4 °C

  • Average December

    22.3 °C

  • Highest 11 December, 2025

    42.5 °C

Climate (2020–Present)

Ceduna Airport (19km)

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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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