Sleaford Islands Weather Forecast

    • 15
    • 30

    Partly cloudy

    • 13
    • 21

    Mostly sunny

    • 13
    • 21

    Cloudy

    • 12
    • 20

    Cloudy

    • 12
    • 25

    Mostly sunny

    • 13
    • 33

    Sunny

    • 14
    • 33

    Sunny

Today 12 Dec Port Lincoln

Partly cloudy. Winds easterly 15 to 20 km/h becoming light before dawn then becoming southerly 25 to 35 km/h in the middle of the day.

Extreme Fire Danger Rating

Take action now to protect life and property

Central Coastal Waters

Wind
East to southeasterly 10 to 15 knots turning southerly 15 to 20 knots in the late morning.
Seas
Around 1 metre, increasing to 1.5 metres by early evening.
1st Swell
Southwesterly 1.5 metres.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sleaford Islands Temperature Statistics View More

December Temperature

Port Lincoln Airport (38km)

  • Lowest 7 December, 2025

    8.1 °C

  • Average December

    18.1 °C

  • Highest 3 December, 2025

    35.3 °C

Climate (2020–Present)

Port Lincoln Airport (38km)

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  • Average Low 2020–2025

    11.4 °C

  • Average 2020–2025

    15.7 °C

  • Average High 2020–2025

    21.3 °C
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