Port Arthur Weather Forecast

    • 14
    • 23

    Shower

    • 10
    • 23

    Fog

    • 13
    • 27

    Partly cloudy

    • 14
    • 28

    Partly cloudy

    • 15
    • 29

    Sunny

    • 16
    • 29

    Partly cloudy

    • 17
    • 27

    Shower

Today 26 Apr Yorke Peninsula

Medium chance of showers, becoming less likely this morning. The chance of a thunderstorm early this morning. Mostly sunny afternoon. Winds west to southwesterly 15 to 20 km/h increasing to 25 km/h before turning south to southeasterly 15 to 20 km/h in the afternoon. Daytime maximum temperatures in the low to mid 20s.

Gulf St Vincent Coastal Waters

Wind
West to southwesterly 10 to 15 knots turning south to southeasterly in the afternoon.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre.
Weather
70% chance of showers this morning. The chance of a thunderstorm early this morning. Sunny afternoon.
Weather Situation
A strong high pressure system over the Tasman Sea will maintain a ridge over SA. A trough over the southeast of the state will weaken and clear to the east early Sunday. A new high pressure system will develop in the Bight on Sunday, drifting east early next week to merge with the strong high in the Tasman Sea.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Temperature Statistics View More

April Temperature

Kadina Airport (41km)

  • Lowest 18 April, 2026

    6.7 °C
  • Average April

    17.9 °C
  • Highest 21 April, 2026

    30.2 °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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