Waterfall Bay (Port Arthur) Weather Forecast

    • 12
    • 17

    Shower or two

    • 12
    • 17

    Partly cloudy

    • 8
    • 14

    Shower or two

    • 7
    • 13

    Shower or two

    • 8
    • 15

    Partly cloudy

    • 9
    • 16

    Shower or two

    • 8
    • 13

    Shower or two

Today 19 Aug South East

Partly cloudy. Medium chance of showers, most likely in the late afternoon and evening. Winds north to northeasterly 20 to 30 km/h. Daytime maximum temperatures between 14 and 19.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Northerly 20 to 25 knots, reaching up to 30 knots offshore during the afternoon and evening.
Seas
1 to 2 metres, increasing to 2 to 3 metres offshore.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A trough is crossing Tasmania, directing a northwesterly flow over the state. The trough will move to the east of the state early Thursday. A series of troughs and fronts embedded in a westerly flow are then expected to cross Tasmania over the coming days. A high pressure system to the north of Tasmania brings a northwesterly flow and more stable conditions on Sunday.
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 15 August, 2026

    6.1 °C

  • Average August

    9.7 °C

  • Highest 1 August, 2026

    13.7 °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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