Saint Peter Island Weather Forecast

    • 18
    • 19

    Partly cloudy

    • 16
    • 19

    Sunny

    • 18
    • 21

    Sunny

    • 21
    • 27

    Sunny

    • 23
    • 27

    Sunny

    • 20
    • 21

    Partly cloudy

    • 19
    • 19

    Mostly sunny

Today 14 Dec West Coast

Mostly clear. Winds south to southwesterly 25 to 35 km/h tending south to southeasterly 20 to 30 km/h during the afternoon and evening.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southerly 15 to 20 knots tending southeasterly in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres by early evening.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system in the Bight, maintains a ridge over SA as it slowly moves eastwards and out to the Tasman Sea by Wednesday. A trough of low pressure forecast to drift into the far northeast of SA late Wednesday, slowing moving south during Thursday.
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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

    21.8 °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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