River Tamar - Bonnie Beach Weather Forecast

    • 5
    • 20

    Cloudy

    • 7
    • 23

    Mostly sunny

    • 10
    • 21

    Cloudy

    • 9
    • 24

    Sunny

    • 12
    • 25

    Possible late shower

    • 13
    • 19

    Shower or two

    • 11
    • 22

    Partly cloudy

Today 26 Dec Central North

Partly cloudy. Winds south to southwesterly 15 to 25 km/h tending south to southeasterly 15 to 20 km/h during the afternoon and evening. Daytime maximum temperatures between 17 and 20.

Central North Coastal Waters

Stanley to Flinders Island
Wind
South to southwesterly 15 to 20 knots, reaching up to 25 knots offshore during the morning. Winds tending west to southwesterly in the evening then tending south to southwesterly in the late evening.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
1st Swell
West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
Partly cloudy.
Weather Situation
A high pressure system south of the Bight slowly builds a ridge over Tasmania today. The high will then move to the south of Tasmania on Saturday before entering the Tasman Sea on Sunday. By late Monday a trough will begin to develop off the western coasts.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

River Tamar - Bonnie Beach Temperature Statistics View More

December Temperature

Low Head (19km)

  • Lowest 1 December, 2025

    7.2 °C

  • Average December

    14.6 °C

  • Highest 18 December, 2025

    22.5 °C

Climate (2020–Present)

Low Head (19km)

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  • Average Low 2020–2025

    10.8 °C

  • Average 2020–2025

    13.9 °C

  • Average High 2020–2025

    17.1 °C
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