Port Arthur Weather Forecast

    • 13
    • 23

    Partly cloudy

    • 13
    • 22

    Shower or two

    • 14
    • 21

    Shower or two. Windy

    • 10
    • 19

    Morning shower or two

    • 12
    • 22

    Mostly sunny

    • 13
    • 20

    Possible shower

    • 12
    • 19

    Shower or two

Today 8 Jan South East

Partly cloudy. Winds west to southwesterly 20 to 30 km/h tending northeast to southeasterly in the evening. Daytime maximum temperatures between 19 and 26.

South East Coastal Waters

Tasman Island to South East Cape
Wind
West to southwesterly 15 to 25 knots.
Seas
1.5 to 2 metres.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A trough lingers off the northeast coast during Thursday as a ridge of high pressure extends over Tasmania from the west. The trough is expected to slowly move eastwards on Friday, as a cold front approaches the west coast before crossing the state early Saturday. Another trough crosses from the west during Saturday evening. A high pressure system will move to a position over waters south of the Bight on Sunday and will extend a ridge over Tasmania into next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Temperature Statistics View More

January Temperature

Tasman Island (16km)

  • Lowest 1 January, 2026

    9.9 °C

  • Average January

    14 °C

  • Highest 6 January, 2026

    20.3 °C

Climate (2021–Present)

Tasman Island (16km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.5 °C
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