Port Arthur Jetty Weather Forecast

    • 11
    • 17

    Clear

    • 12
    • 23

    Partly cloudy

    • 15
    • 23

    Partly cloudy

    • 14
    • 21

    Partly cloudy

    • 14
    • 20

    Shower or two

    • 11
    • 18

    Showers easing

    • 11
    • 17

    Shower or two

Today 29 Apr South East

Mostly clear. Winds east to northeasterly 15 to 25 km/h turning north to northwesterly 15 to 20 km/h in the evening.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Variable about 10 knots becoming northerly 15 to 20 knots in the evening. Winds reaching up to 25 knots offshore in the late evening.
Seas
Below 0.5 metres, increasing to around 1 metre by early evening.
1st Swell
Southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Mostly clear.
Weather Situation
A near-stationary high-pressure system persists over the Tasman Sea. As a result warm north to northeasterly flow will continue into the weekend. A a slow-moving low pressure system and cold front build over the Bight and are expected to move over Tasmania early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Jetty Temperature Statistics View More

April Temperature

Tasman Island (16km)

  • Lowest 13 April, 2026

    5.8 °C

  • Average April

    12.7 °C

  • Highest 24 April, 2026

    22.9 °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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