Waterfall Bay (Port Arthur) Weather Forecast

    • 8
    • 15

    Partly cloudy

    • 9
    • 15

    Partly cloudy

    • 9
    • 14

    Shower or two

    • 9
    • 13

    Showers

    • 5
    • 10

    Showers increasing

    • 5
    • 13

    Showers

    • 8
    • 12

    Shower or two

Today 19 Jul South East

Partly cloudy. Winds north to northwesterly 15 to 20 km/h.

South East Coastal Waters

Tasman Island to South East Cape
Wind
North to northwesterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure centre over eastern Victoria moves east to be over the central Tasman Sea by Tuesday. A weak trough is expected to move over the west Monday evening, and the rest of the state during Tuesday, before a strong cold front is forecast to move over the state from the west on Wednesday afternoon. A strong west to southwesterly follows the front on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

July Temperature

Tasman Island (15km)

  • Lowest 4 July, 2026

    3.9 °C

  • Average July

    9.3 °C

  • Highest 1 July, 2026

    15.3 °C

Climate (2021–2026)

Tasman Island (15km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.6 °C
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