Waterfall Bay (Port Arthur) Weather Forecast

    • 5
    • 11

    Showers. Becoming windy

    • 6
    • 12

    Showers

    • 7
    • 13

    Sunny

    • 6
    • 14

    Mostly sunny

    • 7
    • 14

    Partly cloudy

    • 8
    • 13

    Shower or two

    • 7
    • 12

    Shower or two

Today 29 Jul South East

Cloudy. Very high chance of showers, with possible small hail. Snow falling above 600 metres. Winds northwesterly 15 to 25 km/h turning southwesterly 30 to 45 km/h in the morning then tending westerly 25 to 35 km/h in the evening. Daytime maximum temperatures between 5 and 10.

South East Coastal Waters

Tasman Island to South East Cape
Wind
West to northwesterly 20 to 30 knots turning southwesterly during the morning. Winds reaching up to 35 knots in the early afternoon.
Seas
2 to 3 metres.
1st Swell
Southwesterly 2.5 to 4 metres, increasing to 4 to 6 metres during the morning, then decreasing to 4 metres later in the evening.
Weather
Cloudy. Near 100% chance of showers, with possible small hail.
Weather Situation
A cold southwesterly airstream moves over Tasmania today following a cold front that has cleared to the east. The airstream will then tend more westerly during Thursday and Friday as a large high pressure centre establishes near the South Australian coast. The high centre will then slowly cross the southeastern mainland later Friday and during Saturday as a low centre and associated cold front approach Tasmania from the west.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

July Temperature

Tasman Island (15km)

  • Lowest 24 July, 2026

    2.5 °C

  • Average July

    9.7 °C

  • Highest 19 July, 2026

    17 °C

Climate (2021–2026)

Tasman Island (15km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.6 °C
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