Waterfall Bay (Port Arthur) Weather Forecast

    • 7
    • 16

    Sunny day. Late showers

    • 7
    • 12

    Showers. Windy

    • 9
    • 16

    Cloud clearing

    • 8
    • 17

    Sunny

    • 7
    • 16

    Partly cloudy

    • 9
    • 18

    Shower or two

    • 11
    • 19

    Possible shower

Today 8 Sep South East

Partly cloudy. Very high chance of showers in the south, high chance elsewhere. Snow falling above 700 metres. Possible small hail in the evening. Winds northwesterly 20 to 30 km/h increasing to 25 to 40 km/h in the morning then turning westerly 30 to 45 km/h in the late morning and early afternoon. Overnight temperatures falling to between 3 and 7 with daytime temperatures reaching between 11 and 16.

South East Coastal Waters

Tasman Island to South East Cape
Wind
West to northwesterly 20 to 30 knots, reaching up to 35 knots offshore in the late morning and afternoon.
Seas
2 to 4 metres, decreasing to 2 to 3 metres by early evening.
1st Swell
West to southwesterly 2.5 to 3 metres, increasing to 3 to 5 metres during the morning.
Weather
Partly cloudy. 95% chance of showers, with possible small hail in the evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Waterfall Bay (Port Arthur) Temperature Statistics View More

September Temperature

Tasman Island (15km)

  • Lowest 4 September, 2026

    6.1 °C

  • Average September

    10.4 °C

  • Highest 1 September, 2026

    15.9 °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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