Port Arthur Weather Forecast

    • 6
    • 12

    Showers easing

    • 6
    • 11

    Showers increasing

    • 5
    • 13

    Showers

    • 8
    • 14

    Shower or two

    • 8
    • 13

    Shower or two

    • 7
    • 15

    Shower or two

    • 8
    • 14

    Shower or two

Today 28 Aug South East

Cloudy. High chance of showers, with possible small hail in the far south. Snow falling above 700 metres. Winds westerly 25 to 40 km/h turning northwesterly 15 to 25 km/h in the evening. Overnight temperatures falling to between 2 and 6 with daytime temperatures reaching between 6 and 12.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 20 to 30 knots, reaching up to 35 knots early in the morning. Winds decreasing to 15 to 20 knots in the late evening.
Seas
3 to 4 metres, decreasing to 2 to 3 metres around midday.
1st Swell
West to southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Cloudy. 95% chance of showers, with possible small hail.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Temperature Statistics View More

August Temperature

Tasman Island (16km)

  • Lowest 17 August, 2025

    3.3 °C

  • Average August

    9.6 °C

  • Highest 14 August, 2025

    15.2 °C

Climate (2020–Present)

Tasman Island (16km)

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  • Average Low 2020–2025

    9.4 °C

  • Average 2020–2025

    11.5 °C

  • Average High 2020–2025

    14.6 °C
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