Sleaford Bay Weather Forecast

    • 13
    • 21

    Partly cloudy

    • 9
    • 22

    Partly cloudy

    • 10
    • 29

    Sunny

    • 13
    • 24

    Partly cloudy

    • 13
    • 23

    Possible morning shower

    • 13
    • 27

    Mostly sunny

    • 14
    • 33

    Mostly sunny

Today 6 Dec Port Lincoln

Partly cloudy. Winds southwesterly 30 to 40 km/h decreasing to 20 to 25 km/h in the evening then tending southerly in the late evening.

Central Coastal Waters

Wind
Southwesterly 15 to 25 knots decreasing to 10 to 15 knots in the late evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres later in the evening.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system is building west of the Bight. The high will move slowly eastwards on Sunday and early next week to be centred over the Tasman Sea by Monday. Another weak cold front clips the southeast late Monday, before another high pressure ridge develops south of the Bight on Tuesday. A trough of low pressure develops across the far north on Tuesday and Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sleaford Bay Temperature Statistics View More

December Temperature

Port Lincoln Airport (30km)

  • Lowest 2 December, 2025

    8.5 °C

  • Average December

    18.5 °C

  • Highest 3 December, 2025

    35.3 °C

Climate (2020–Present)

Port Lincoln Airport (30km)

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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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