Port Arthur Jetty Weather Forecast

    • 10
    • 16

    Partly cloudy

    • 10
    • 15

    Possible shower

    • 9
    • 17

    Mostly sunny

    • 10
    • 18

    Mostly sunny

    • 11
    • 18

    Partly cloudy

    • 12
    • 18

    Shower or two

    • 9
    • 16

    Shower or two

Today 19 May South East

Partly cloudy. The chance of morning fog. Medium chance of showers in the far south, slight chance elsewhere. Light winds becoming northwesterly 15 to 20 km/h in the morning then tending westerly 15 to 25 km/h in the middle of the day. Daytime maximum temperatures between 11 and 16.

South East Coastal Waters

Tasman Island to South East Cape
Wind
North to northwesterly 15 to 20 knots turning west to southwesterly in the early afternoon. Winds reaching up to 25 knots near Tasman Island in the evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon, increasing to 1 to 2 metres inshore by early evening.
1st Swell
West to southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres by early evening, then increasing to 1 to 2 metres later in the evening.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A weak cold front will cross Tasmania today. A ridge will then extend over the State from a high in the northern Bight from Wednesday. The high is forecast to move across Tasmania during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Jetty Temperature Statistics View More

May Temperature

Tasman Island (16km)

  • Lowest 8 May, 2026

    4.7 °C

  • Average May

    13.1 °C

  • Highest 1 May, 2026

    21.4 °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

    14.6 °C
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