Sleaford Islands Weather Forecast

    • 15
    • 29

    Cloudy

    • 14
    • 21

    Becoming windy. Cloudy

    • 13
    • 22

    Partly cloudy

    • 12
    • 24

    Cloud clearing

    • 13
    • 27

    Mostly sunny

    • 15
    • 24

    Partly cloudy

    • 14
    • 24

    Mostly sunny

Today 29 Dec Port Lincoln

Partly cloudy. Winds southerly 25 to 35 km/h.

Central Coastal Waters

Wind
Southerly 15 to 25 knots, reaching up to 30 knots in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening.
1st Swell
Southwesterly 2 metres.
Weather
Cloudy.
Weather Situation
A trough over central coasts will move down southern coasts during Monday evening. Behind this trough a weak ridge of high pressure will develop south of the Bight, persisting into Friday.
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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

    18.6 °C

  • Highest 18 December, 2025

    42.7 °C

Climate (2020–Present)

Port Lincoln Airport (38km)

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  • Average Low 2020–2025

    11.4 °C

  • Average 2020–2025

    15.8 °C

  • Average High 2020–2025

    21.3 °C
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