Port Germein Weather Forecast

    • 12
    • 22

    Possible late shower

    • 10
    • 18

    Shower or two

    • 9
    • 20

    Possible shower

    • 10
    • 19

    Partly cloudy

    • 7
    • 18

    Cloud clearing

    • 6
    • 20

    Sunny

    • 8
    • 24

    Mostly sunny

Today 19 Sep Mid North

Mostly sunny day. Medium chance of showers, most likely this evening. Winds west to northwesterly 15 to 20 km/h increasing to 20 to 30 km/h in the early morning then tending west to southwesterly 30 to 45 km/h in the late morning and afternoon. Daytime maximum temperatures between 18 and 21.

Spencer Gulf Coastal Waters

Wind
West to northwesterly 15 to 20 knots tending west to southwesterly 20 to 25 knots in the late morning and early afternoon. Winds reaching up to 30 knots south of Cowell to Wallaroo during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Port Neill to Port Victoria later in the evening.
Weather
Becoming cloudy. 50% chance of showers.
Weather Situation
A high pressure system lies to the west of the country with a ridge extending into the west of the state. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Germein Temperature Statistics View More

September Temperature

Whyalla Airport (44km)

  • Lowest 1 September, 2025

    2.8 °C

  • Average September

    15.2 °C

  • Highest 6 September, 2025

    33.8 °C

Climate (2020–Present)

Whyalla Airport (44km)

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  • Average Low 2020–2025

    11.9 °C

  • Average 2020–2025

    17.5 °C

  • Average High 2020–2025

    23.8 °C
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