Port Arthur Weather Forecast

    • 9
    • 13

    Showers

    • 8
    • 14

    Partly cloudy

    • 9
    • 16

    Shower or two

    • 8
    • 14

    Showers

    • 6
    • 11

    Showers

    • 7
    • 12

    Shower or two

    • 6
    • 13

    Partly cloudy

Today 25 Jul South East

Cloudy. Very high chance of showers in the south, medium chance elsewhere. Winds westerly 25 to 40 km/h turning northwesterly 15 to 25 km/h in the late afternoon. Daytime maximum temperatures between 8 and 13.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Southwesterly 25 to 30 knots, reaching up to 35 knots early in the morning. Winds tending west to southwesterly 15 to 25 knots in the morning then becoming westerly 20 to 30 knots in the late evening.
Seas
2 to 3 metres, decreasing to 1.5 to 2 metres around midday.
1st Swell
Southwesterly 3 to 5 metres, decreasing to 3 metres later in the evening.
Weather
Cloudy. 95% chance of showers.
Weather Situation
A westerly airstream is expected to continue over Tasmania into the new week with a series of fronts and troughs to pass over the state. A low pressure centre and associated cold front slowly approach from the west, crossing Tasmania on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Port Arthur Temperature Statistics View More

July Temperature

Tasman Island (16km)

  • Lowest 24 July, 2026

    2.5 °C

  • Average July

    9.4 °C

  • Highest 19 July, 2026

    17 °C

Climate (2021–2026)

Tasman Island (16km)

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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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