Mercury Passage Weather Forecast

    • 11
    • 19

    Mostly sunny

    • 10
    • 19

    Mostly sunny

    • 11
    • 18

    Partly cloudy

    • 12
    • 22

    Sunny

    • 14
    • 22

    Shower or two

    • 11
    • 19

    Shower or two

    • 9
    • 16

    Possible shower. Windy

Today 9 Dec East Coast

Sunny. Winds west to southwesterly 30 to 45 km/h decreasing to 15 to 20 km/h in the late evening. Daytime maximum temperatures between 17 and 22.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
West to southwesterly 15 to 25 knots, reaching up to 30 knots in the late morning and afternoon. Winds tending south to southwesterly in the evening then tending west to southwesterly 15 to 20 knots in the late evening.
Seas
1.5 to 2.5 metres.
1st Swell
Southwesterly 2 to 3 metres, increasing to 2 to 4 metres during the afternoon.
Weather
Mostly sunny.
Weather Situation
A westerly stream following the passage of a cold front overnight will persist throughout Tuesday with a high to build over the Bight and extend a ridge to the north of Tasmania. The high centre will slowly approach Tasmania on Wednesday, with the high expected to move over Tasmania on Thursday and slowly away to the east of the state during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mercury Passage Temperature Statistics View More

December Temperature

Maria Island (Point Lesueur) (5km)

  • Lowest 1 December, 2025

    7.9 °C

  • Average December

    14.4 °C

  • Highest 4 December, 2025

    29 °C

Climate (2020–Present)

Maria Island (Point Lesueur) (5km)

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  • Average Low 2020–2025

    10.7 °C

  • Average 2020–2025

    13.4 °C

  • Average High 2020–2025

    16.8 °C
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