Waterfall Bay (Port Arthur) Weather Forecast

    • 10
    • 19

    Partly cloudy

    • 9
    • 19

    Partly cloudy

    • 11
    • 17

    Partly cloudy

    • 12
    • 22

    Partly cloudy

    • 15
    • 22

    Partly cloudy

    • 14
    • 22

    Mostly sunny

    • 13
    • 20

    Shower or two

Today 27 Apr South East

Mostly clear. Winds west to northwesterly 15 to 20 km/h.

South East Coastal Waters

Tasman Island to South East Cape
Wind
West to northwesterly 10 to 15 knots, reaching up to 25 knots offshore in the evening.
Seas
Around 1 metre, increasing to 1 to 2 metres offshore.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A near-stationary high-pressure system over the Tasman Sea extends a ridge across Tasmania, directing a mostly west to northwesterly flow over the State until the end of the week. Northwesterly winds freshening on Tuesday ahead of an approaching cold front that is expected to clip southern Tasmania late Tuesday and early Wednesday. Lighter winds during Wednesday as a weak high pressure system crosses the State, then warm north to northwesterly flow persisting until later in the weekend as a stronger, slow-moving cold front builds over the Bight.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

April Temperature

Tasman Island (15km)

  • Lowest 13 April, 2026

    5.8 °C

  • Average April

    12.6 °C

  • Highest 24 April, 2026

    22.9 °C

Climate (2021–Present)

Tasman Island (15km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.5 °C
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