Waterfall Bay (Port Arthur) Weather Forecast

    • 9
    • 16

    Mostly sunny

    • 7
    • 16

    Sunny

    • 7
    • 16

    Mostly sunny

    • 8
    • 19

    Partly cloudy

    • 11
    • 20

    Shower or two

    • 9
    • 14

    Showers

    • 8
    • 14

    Shower or two

Today 10 Sep South East

Partly cloudy. Slight chance of a shower in the far south, most likely in the morning. Near zero chance of rain elsewhere. Winds westerly 25 to 35 km/h. Overnight temperatures falling to between 5 and 9 with daytime temperatures reaching between 12 and 18.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Southwesterly 25 to 30 knots turning westerly early in the morning. Winds reaching up to 35 knots offshore during the day.
Seas
2 to 3 metres, increasing to 3 to 4 metres offshore.
1st Swell
Southwesterly 5 to 7 metres.
Weather
Partly cloudy.
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 9 September, 2026

    4.4 °C

  • Average September

    9.9 °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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