Port Germein Weather Forecast

    • 20
    • 35

    Partly cloudy

    • 20
    • 33

    Partly cloudy

    • 21
    • 38

    Mostly sunny

    • 18
    • 28

    Cloud clearing

    • 14
    • 25

    Mostly sunny

    • 14
    • 27

    Cloud clearing

    • 13
    • 29

    Sunny

Today 10 Dec Mid North

Partly cloudy. Winds southeasterly 20 to 30 km/h. Daytime maximum temperatures 29 to 35.

Spencer Gulf Coastal Waters

Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots south of Cowell to Wallaroo in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres by early evening.
1st Swell
South to southwesterly around 1 metre, increasing to 1 to 2 metres south of Cowell to Wallaroo.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Bight extends a ridge of high pressure over most of the state and will persist over southern SA during today and Thursday. Meanwhile, a trough of low pressure over the far northwest is expected to move along the northern border today. The trough will extend further south on Thursday then move eastwards across the west and south of SA on Friday. Another ridge of high pressure will move over the south over the weekend and the trough will move slowly northeastwards.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Germein Temperature Statistics View More

December Temperature

Whyalla Airport (44km)

  • Lowest 2 December, 2025

    10.2 °C
  • Average December

    21.1 °C
  • Highest 4 December, 2025

    40.7 °C

Climate (2020–Present)

Whyalla Airport (44km)

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  • Average Low 2020–2025

    11.8 °C
  • Average 2020–2025

    17.4 °C
  • Average High 2020–2025

    23.7 °C
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