Waterfall Bay (Port Arthur) Weather Forecast

    • 9
    • 16

    Sunny

    • 8
    • 16

    Sunny

    • 9
    • 16

    Mostly sunny

    • 9
    • 16

    Partly cloudy

    • 11
    • 18

    Shower or two

    • 11
    • 16

    Shower or two

    • 10
    • 15

    Showers

Today 20 May South East

Sunny. Winds northwesterly 15 to 20 km/h becoming light in the late afternoon then becoming north to northwesterly 15 to 20 km/h in the evening. Daytime maximum temperatures between 12 and 16.

South East Coastal Waters

Tasman Island to South East Cape
Wind
North to northwesterly 10 to 15 knots, reaching up to 25 knots offshore in the late afternoon.
Seas
Below 1 metre, increasing to 1 to 2 metres offshore.
1st Swell
West to southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system lies to the north of Tasmania, with the high expected to move over the Tasman Sea later today, directing a northwesterly flow over the state ahead of an approaching weak trough. The trough will move over Tasmania on Wednesday, with a high forecast to build over northern Tasmania on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

May Temperature

Tasman Island (15km)

  • Lowest 18 May, 2025

    4 °C

  • Average May

    11.5 °C

  • Highest 5 May, 2025

    18.9 °C

Climate (2020–Present)

Tasman Island (15km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    11.5 °C

  • Average High 2020–2025

    14.5 °C
Get WillyWeather+ to remove ads