Waterfall Bay (Port Arthur) Weather Forecast

    • 9
    • 14

    Mostly clear

    • 9
    • 15

    Mostly sunny

    • 11
    • 15

    Sunny

    • 9
    • 15

    Partly cloudy

    • 9
    • 17

    Showers increasing

    • 9
    • 15

    Possible shower

    • 10
    • 16

    Shower or two

Today 28 Aug South East

Partly cloudy. Medium chance of showers in the far south, near zero chance elsewhere. Winds westerly 20 to 30 km/h.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 25 to 30 knots, reaching up to 35 knots offshore in the late evening.
Seas
2.5 to 3 metres.
1st Swell
Westerly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Cloudy.
Weather Situation
A high pressure system south of the Bight will build and begin to extend a ridge to the north of Tasmania from late Friday into the weekend. The high pressure centre is expected to track well north of Tasmania on Monday, then move into the Tasman Sea with a strong cold front approaching from the west, crossing Tasmania on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

August Temperature

Tasman Island (15km)

  • Lowest 23 August, 2026

    6 °C

  • Average August

    9.9 °C

  • Highest 20 August, 2026

    17.1 °C

Climate (2021–2026)

Tasman Island (15km)

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

  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.6 °C
Get WillyWeather+ to remove ads