Port Arthur Weather Forecast

    • 16
    • 20

    Windy

    • 14
    • 18

    Cloudy

    • 11
    • 21

    Partly cloudy

    • 12
    • 25

    Partly cloudy

    • 15
    • 26

    Partly cloudy

    • 16
    • 30

    Sunny

    • 18
    • 26

    Partly cloudy

Today 26 Mar Yorke Peninsula

Partly cloudy. Slight chance of a shower in the north, near zero chance elsewhere. Winds southerly 25 to 40 km/h.

Gulf St Vincent Coastal Waters

Wind
Southerly 25 to 30 knots.
Seas
2 to 2.5 metres.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
An upper level trough over southeast SA will continue to move eastwards, as a high pressure system starts to build southwest of the Bight. The high will become established south of SA by Friday, then moving eastwards over the weekend to be centred over the Tasman Sea on Monday. A low pressure system well to the south will link to a trough over the far west late Monday and into Tuesday.
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  • Temperature Forecast Bureau of Meteorology

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Port Arthur Temperature Statistics View More

March Temperature

Kadina Airport (41km)

  • Lowest 14 March, 2026

    8.7 °C

  • Average March

    20.2 °C

  • Highest 24 March, 2026

    33.6 °C

Climate (2021–Present)

Kadina Airport (41km)

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  • Average Low 2021–2026

    10.1 °C

  • Average 2021–2026

    16.4 °C

  • Average High 2021–2026

    23.5 °C
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