Sleaford Bay Weather Forecast

    • 14
    • 37

    Sunny

    • 17
    • 38

    Sunny

    • 15
    • 24

    Partly cloudy

    • 13
    • 23

    Shower or two

    • 14
    • 22

    Shower or two

    • 12
    • 22

    Partly cloudy

    • 13
    • 22

    Partly cloudy

Today 17 Dec Port Lincoln

Sunny. Winds north to northeasterly 15 to 20 km/h turning east to southeasterly in the early afternoon then becoming light in the evening.

Central Coastal Waters

Wind
North to northeasterly 10 to 15 knots becoming variable about 10 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
South to southeasterly around 1 metre.
Weather
Sunny.
Weather Situation
A high pressure system drifts into the Tasman Sea today. A trough of low pressure will briefly enter the far northeast of SA with another trough slowly moving across the south and west on Thursday. In the wake of the trough a south to southwesterly flow will establish across the coasts on Friday, continuing into Saturday.
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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 7 December, 2025

    8.1 °C

  • Average December

    18.1 °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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