Waterfall Bay (Port Arthur) Weather Forecast

    • 10
    • 15

    Showers

    • 8
    • 12

    Showers

    • 6
    • 15

    Mostly sunny

    • 8
    • 13

    Shower or two

    • 8
    • 15

    Mostly sunny

    • 9
    • 15

    Mostly sunny

    • 8
    • 16

    Mostly sunny

Today 25 Aug South East

Cloudy. Very high chance of showers, becoming less likely later this evening. Light winds becoming west to northwesterly 15 to 20 km/h in the late evening.

South East Coastal Waters

Tasman Island to South East Cape
Wind
North to northeasterly 10 to 15 knots turning west to northwesterly 15 to 20 knots in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy. 95% chance of rain.
Weather Situation
A broad low pressure system moves over Tasmania, expected to move away to the southeast during Wednesday morning. A high pressure system over South Australia is expected to extend a ridge over Tasmania later Wednesday, before moving to north of the state on Thursday. A cold front is expected to approach the southwest late Thursday, crossing during Friday. A high pressure system to the south of the Bight approaches the west during the weekend, extending a ridge to the north of Tasmania.
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

    10 °C

  • Highest 20 August, 2026

    17.1 °C

Climate (2021–2026)

Tasman Island (15km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.6 °C
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