Waterfall Bay (Port Arthur) Weather Forecast

    • 13
    • 20

    Late shower or two

    • 8
    • 12

    Showers

    • 5
    • 13

    Showers easing

    • 8
    • 15

    Cloudy

    • 9
    • 17

    Mostly sunny

    • 12
    • 20

    Shower or two

    • 11
    • 19

    Shower or two

Today 14 Sep South East

Partly cloudy. High chance of showers in the south, medium chance elsewhere. Winds north to northwesterly 25 to 35 km/h tending west to northwesterly 25 to 40 km/h during the morning and early afternoon. Daytime maximum temperatures between 14 and 21.

South East Coastal Waters

Tasman Island to South East Cape
Wind
North to northwesterly 15 to 20 knots tending west to northwesterly 20 to 30 knots from the late morning.
Seas
1 to 1.5 metres, increasing to 2 to 3 metres around midday.
1st Swell
Southwesterly 2 to 2.5 metres, tending westerly 2 to 3 metres by early evening.
Weather
Partly cloudy. 90% chance of showers, with possible small hail offshore later tonight.
Weather Situation
A cold front approaches the state from the west today, crossing Tasmania overnight. A southwesterly flow will establish over Tasmania from Tuesday, as a high in the Bight extends a ridge over the state on Wednesday. Flow turning westerly into Thursday as the high moves to the north.
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

    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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