Mersey River - Mouth Weather Forecast

    • 8
    • 17

    Mostly sunny

    • 7
    • 17

    Partly cloudy

    • 7
    • 19

    Showers

    • 8
    • 14

    Partly cloudy

    • 7
    • 14

    Shower or two

    • 9
    • 14

    Showers

    • 7
    • 13

    Showers. Becoming windy

Today 3 Oct Devonport

Slight chance of a shower early this morning. Sunny afternoon. Winds northwest to southwesterly 20 to 30 km/h becoming southwesterly 25 to 30 km/h in the middle of the day then tending westerly 15 to 25 km/h in the late afternoon.

Central North Coastal Waters

Stanley to Flinders Island
Wind
Westerly 20 to 30 knots turning southwesterly 15 to 25 knots in the evening.
Seas
2 to 3 metres.
1st Swell
Westerly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres by early evening.
Weather
Sunny.
Weather Situation
A high pressure system is expected to move over Victoria today and extend a ridge over Tasmania later in the day. The ridge is forecast to move east on Saturday, ahead of a trough and a cold front expected to approach and cross the state from the west during Sunday. On Monday, a ridge over the southern mainland will direct westerly flow over Tasmania.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mersey River - Mouth Temperature Statistics View More

October Temperature

Devonport Airport (5km)

  • Lowest 2 October, 2025

    4.2 °C

  • Average October

    9.7 °C

  • Highest 1 October, 2025

    13.4 °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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