Waterfall Bay (Port Arthur) Weather Forecast

    • 6
    • 13

    Shower or two

    • 9
    • 15

    Cloudy

    • 10
    • 18

    Partly cloudy

    • 12
    • 18

    Partly cloudy

    • 12
    • 22

    Shower or two

    • 7
    • 13

    Shower or two

    • 7
    • 14

    Possible shower

Today 16 Sep South East

Cloudy. High chance of showers in the far south, medium chance elsewhere. Snow falling above 700 metres. Possible small hail early this morning. Winds west to southwesterly 25 to 40 km/h decreasing to 20 to 30 km/h in the late afternoon. Daytime maximum temperatures between 8 and 13.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Southwesterly 20 to 30 knots turning westerly 25 to 30 knots in the late afternoon.
Seas
2 to 3 metres.
1st Swell
Southwesterly 4 to 6 metres.
Weather
Cloudy. 80% chance of showers, with possible small hail this morning.
Weather Situation
A high over the central parts of the Bight directs a cold southwesterly wind over Tasmania. The high is expected to extend a ridge over the state from Wednesday as it moves toward western Victoria, and over central Victoria on Thursday. Strong and gusty northwesterly winds are expected on Friday as a deep low pressure system develops well to the south. A weak ridge is forecast to move over the state on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

September Temperature

Tasman Island (15km)

  • Lowest 9 September, 2026

    4.4 °C

  • Average September

    10.7 °C

  • Highest 14 September, 2026

    19.9 °C

Climate (2021–2026)

Tasman Island (15km)

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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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