Port Arthur Weather Forecast

    • 12
    • 24

    Partly cloudy

    • 11
    • 21

    Shower

    • 9
    • 23

    Partly cloudy

    • 10
    • 29

    Partly cloudy

    • 16
    • 33

    Partly cloudy

    • 13
    • 25

    Shower

    • 12
    • 25

    Shower

Today 25 Sep Yorke Peninsula

Partly cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds southeasterly 15 to 20 km/h.

Gulf St Vincent Coastal Waters

Wind
South to southeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
A trough extends over central Australia. A strong high pressure system extends a ridge across southern SA this weekend and pushes the trough into northern SA. The high moves into the Tasman Sea early next week, with the trough shifting west towards the WA border.
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  • Temperature Forecast Bureau of Meteorology

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Port Arthur Temperature Statistics View More

September Temperature

Kadina Airport (41km)

  • Lowest 17 September, 2026

    0.9 °C

  • Average September

    12.9 °C

  • Highest 19 September, 2026

    28.8 °C

Climate (2021–2026)

Kadina Airport (41km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    16.4 °C

  • Average High 2021–2026

    23.5 °C
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