Mersey River - Mouth Weather Forecast

    • 9
    • 14

    Shower or two

    • 3
    • 13

    Sunny

    • -1
    • 12

    Morning frost. Sunny

    • 1
    • 13

    Morning frost. Partly cloudy

    • 1
    • 13

    Partly cloudy

    • 2
    • 14

    Partly cloudy

    • 6
    • 15

    Shower or two

Today 15 Aug Devonport

Partly cloudy. Medium chance of showers, becoming less likely later this evening. Winds westerly 25 to 35 km/h decreasing to 15 to 20 km/h in the late evening.

Central North Coastal Waters

Stanley to Flinders Island
Wind
Westerly 20 to 25 knots, reaching up to 30 knots in the evening.
Seas
2 to 3 metres.
1st Swell
West to northwesterly 1 to 2 metres.
Weather
Partly cloudy. 80% chance of showers, with possible small hail later tonight.
Weather Situation
A cold front moves to the east of Tasmania this evening as a cold southwesterly flow develops behind it. A ridge will move over Tasmania on Saturday afternoon, before a weak low pressure system is expected to pass to the northwest of the state during Sunday bringing a southerly stream. A high pressure system is forecast to approach Tasmania from the west during Monday, moving over the state by the evening.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mersey River - Mouth Temperature Statistics View More

August Temperature

Devonport Airport (5km)

  • Lowest 1 August, 2025

    2.7 °C

  • Average August

    9.7 °C

  • Highest 7 August, 2025

    15.9 °C

Climate (2020–Present)

Devonport Airport (5km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.1 °C

  • Average High 2020–2025

    17.8 °C
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