Waterfall Bay (Port Arthur) Weather Forecast

    • 9
    • 16

    Mostly clear

    • 6
    • 17

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 12
    • 19

    Shower or two

    • 9
    • 15

    Shower or two

    • 8
    • 15

    Possible shower

    • 9
    • 17

    Possible shower

Today 22 Sep South East

Clear. Winds northwest to southwesterly 20 to 30 km/h becoming northwesterly 15 to 20 km/h in the late evening.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 15 to 25 knots turning northwesterly in the late evening.
Seas
1 to 2 metres.
1st Swell
Southwesterly 4 to 6 metres.
Weather
Mostly clear.
Weather Situation
A high pressure system centred over Bass Strait moves eastwards to lie over the northern Tasman Sea during Wednesday and Thursday, maintaining ridge dominated conditions over Tasmania. A trough is forecast to move over the state from the west during Friday ahead of a cold front to cross later. A secondary high pressure system is forecast to extend a ridge over Tasmania from the southwest during 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 16 September, 2026

    3.4 °C

  • Average September

    10.7 °C

  • Highest 20 September, 2026

    24.5 °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