Port Arthur Jetty Weather Forecast

    • 9
    • 15

    Partly cloudy

    • 6
    • 19

    Partly cloudy

    • 14
    • 22

    Shower or two

    • 11
    • 19

    Shower or two

    • 9
    • 16

    Partly cloudy

    • 9
    • 17

    Partly cloudy

    • 9
    • 17

    Partly cloudy

Today 28 Sep South East

Partly cloudy. Winds southeast to southwesterly 15 to 25 km/h tending northeast to southeasterly 15 to 20 km/h in the late evening.

South East Coastal Waters

Tasman Island to South East Cape
Wind
West to southwesterly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas
1 to 1.5 metres, decreasing below 1 metre later in the evening.
1st Swell
Southwesterly 2.5 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Cloudy.
Weather Situation
A high pressure system centred to the west of Tasmania extends a ridge over the state, forecast to move across the state during Monday before moving over the Tasman Sea during Tuesday. Northerly flow is expected to build during Tuesday over Tasmania ahead of an approaching trough, forecast to cross during early Wednesday. A broad trough is forecast to cross the state during Thursday, ahead of an approaching cold front.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Jetty Temperature Statistics View More

September Temperature

Tasman Island (16km)

  • Lowest 16 September, 2026

    3.4 °C

  • Average September

    10.5 °C

  • Highest 20 September, 2026

    24.5 °C

Climate (2021–2026)

Tasman Island (16km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.6 °C
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