Waterfall Bay (Port Arthur) Weather Forecast

    • 14
    • 28

    Partly cloudy

    • 13
    • 22

    Mostly sunny

    • 13
    • 21

    Showers increasing

    • 14
    • 21

    Shower or two

    • 11
    • 20

    Possible morning shower

    • 12
    • 21

    Partly cloudy

    • 12
    • 19

    Shower or two

Today 7 Jan South East

Mostly sunny day. The chance of fog in the far south early this morning. Slight chance of a shower this evening. Winds northwest to southwesterly 15 to 20 km/h tending northeast to southeasterly in the middle of the day then tending southeast to southwesterly 15 to 25 km/h in the early afternoon. Daytime maximum temperatures 23 to 31.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Northwest to northeasterly 10 to 15 knots becoming variable about 10 knots in the morning then becoming southeast to southwesterly 10 to 15 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea will continue to extend a ridge over Tasmania until a trough moves across the state later today. This trough will linger off the northeast coast on Thursday until a cold front crosses the state early Saturday, followed by another trough in the evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

January Temperature

Tasman Island (15km)

  • Lowest 1 January, 2026

    9.9 °C

  • Average January

    13.8 °C

  • Highest 5 January, 2026

    19.6 °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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