Port Arthur Weather Forecast

    • 16
    • 29

    Partly cloudy

    • 18
    • 24

    Shower

    • 13
    • 23

    Partly cloudy

    • 13
    • 22

    Partly cloudy

    • 13
    • 25

    Sunny

    • 15
    • 28

    Partly cloudy

    • 17
    • 26

    Shower

Today 31 Mar Yorke Peninsula

Mostly sunny day. Medium chance of showers this evening. Winds north to northeasterly 25 to 35 km/h increasing to 45 km/h before turning west to northwesterly 20 to 25 km/h in the evening. Daytime maximum temperatures around 30.

Gulf St Vincent Coastal Waters

Wind
North to northeasterly 10 to 15 knots, reaching up to 20 knots south of Port Vincent to Brighton in the late morning. Winds tending north to northwesterly during the day.
Seas
Around 1 metre.
1st Swell
Southeast to southwesterly below 0.5 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system over the Tasman sea extends a weak ridge over SA. A trough over central WA extends over southwest SA, and is forecast to move across the west and south later Tuesday, pushing into the northeast of SA on Wednesday. Another high pressure system is expected to become established south of the Bight late in the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Temperature Statistics View More

March Temperature

Kadina Airport (41km)

  • Lowest 14 March, 2026

    8.7 °C

  • Average March

    19.6 °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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