Mercury Passage Weather Forecast

    • 7
    • 13

    Clear

    • 7
    • 14

    Mostly sunny

    • 9
    • 13

    Shower or two. Windy

    • 7
    • 13

    Mostly sunny

    • 8
    • 14

    Partly cloudy

    • 10
    • 15

    Mostly sunny

    • 9
    • 14

    Possible shower

Today 17 Jul East Coast

Clear. Winds westerly 15 to 25 km/h turning northwesterly 15 to 20 km/h in the late evening.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
Westerly 15 to 20 knots, reaching up to 25 knots offshore in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
1st Swell
Southwesterly around 1 metre inshore, increasing to 2 to 3 metres offshore.
Weather
Mostly clear.
Weather Situation
A broad westerly airstream persists over Tasmania until a cold front is expected to cross from the west during Saturday afternoon. Westerlies return on Sunday, as a high pressure system over mainland Australia moves into the Tasman Sea by Monday. Winds are expected to shift northerly on Monday as the high sits over the Tasman Sea and a low pressure system deepens well to the west of Tasmania over the Southern Ocean.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mercury Passage Temperature Statistics View More

July Temperature

Maria Island (Point Lesueur) (5km)

  • Lowest 1 July, 2025

    4.7 °C

  • Average July

    10 °C

  • Highest 13 July, 2025

    15.1 °C

Climate (2020–Present)

Maria Island (Point Lesueur) (5km)

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  • Average Low 2020–2025

    10.8 °C

  • Average 2020–2025

    13.4 °C

  • Average High 2020–2025

    16.8 °C
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