Port Arthur Weather Forecast

    • 20
    • 36

    Sunny

    • 19
    • 37

    Sunny

    • 14
    • 24

    Windy

    • 13
    • 24

    Windy

    • 12
    • 27

    Sunny

    • 13
    • 24

    Partly cloudy

    • 13
    • 24

    Windy

Today 8 Jan Yorke Peninsula

Sunny. Winds east to southeasterly 15 to 25 km/h tending south to southeasterly 25 to 40 km/h during the morning then decreasing to 25 to 35 km/h in the early afternoon. Daytime maximum temperatures 29 to 42.

Gulf St Vincent Coastal Waters

Wind
Southerly 15 to 20 knots, reaching up to 25 knots near the Yorke Peninsula coast during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Sunny.
Weather Situation
A low pressure trough across parts of the west and south will remain relatively stationary during Thursday then will move eastwards on Friday as a cold front moves over southern districts. A ridge of high pressure will extend across the south on Saturday following the front and the main high centre will become established over waters south of the Bight on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Temperature Statistics View More

January Temperature

Kadina Airport (41km)

  • Lowest 4 January, 2026

    10.6 °C

  • Average January

    23.1 °C

  • Highest 6 January, 2026

    40 °C

Climate (2021–Present)

Kadina Airport (41km)

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  • Average Low 2021–2026

    10 °C

  • Average 2021–2026

    16.3 °C

  • Average High 2021–2026

    23.4 °C
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