Waterfall Bay (Port Arthur) Weather Forecast

    • 10
    • 16

    Mostly clear

    • 8
    • 18

    Shower or two

    • 9
    • 15

    Partly cloudy

    • 9
    • 14

    Showers. Windy

    • 8
    • 15

    Shower or two

    • 9
    • 15

    Showers

    • 7
    • 13

    Shower or two

Today 31 Aug South East

Partly cloudy. Winds west to northwesterly 15 to 25 km/h.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 20 to 30 knots turning northwesterly 15 to 25 knots in the late evening.
Seas
1.5 to 2.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres inshore, increasing to 4 metres offshore.
Weather
Partly cloudy.
Weather Situation
A high pressure system over eastern Victoria will move into the Tasman Sea this evening. A cold front will approach Victoria from the west on Tuesday and cross the state Tuesday evening and Wednesday morning. A second cold front embedded in a westerly flow will clip the south of Victoria on Thursday morning, with a high pressure system to build to the north of the state in the evening. This high is expected to move over the Tasman Sea on Friday morning, with a strong cold front to approach the west of Victoria on Friday evening.
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 23 August, 2026

    6 °C
  • Average August

    10.1 °C
  • Highest 20 August, 2026

    17.1 °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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