Waterfall Bay (Port Arthur) Weather Forecast

    • 13
    • 23

    Partly cloudy

    • 10
    • 19

    Partly cloudy

    • 9
    • 19

    Partly cloudy

    • 11
    • 17

    Partly cloudy

    • 12
    • 21

    Partly cloudy

    • 15
    • 22

    Partly cloudy

    • 13
    • 19

    Shower or two

Today 26 Apr South East

Partly cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds west to northwesterly 20 to 30 km/h.

South East Coastal Waters

Tasman Island to South East Cape
Wind
West to southwesterly 15 to 20 knots, reaching up to 25 knots offshore in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres later in the evening.
1st Swell
West to southwesterly 1.5 to 2.5 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. A cold front is approaching from the west, and is expected to weaken before clipping the south of the State during Sunday night. The ridge becomes reestablished across Tasmania on Monday. Northwesterly winds freshening on Tuesday ahead of another approaching cold front that is expected to again clip southern Tasmania late Tuesday and early Wednesday.
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

    12.4 °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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