River Tamar - Bonnie Beach Weather Forecast

    • 7
    • 14

    Mostly sunny

    • 3
    • 16

    Partly cloudy

    • 3
    • 17

    Sunny

    • 5
    • 20

    Partly cloudy

    • 9
    • 21

    Shower or two

    • 10
    • 17

    Shower or two

    • 6
    • 16

    Partly cloudy

Today 21 Sep Central North

Mostly sunny. Slight chance of a shower, most likely in the late morning. Snow possible above 600 metres. Winds westerly 25 to 35 km/h. Overnight temperatures falling to between 4 and 7 with daytime temperatures reaching between 11 and 14.

Central North Coastal Waters

Stanley to Flinders Island
Wind
West to southwesterly 15 to 25 knots, reaching up to 30 knots during the morning.
Seas
2 to 3 metres, decreasing to 1.5 to 2 metres around midday.
1st Swell
Westerly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres around midday.
Weather
Mostly sunny.
Weather Situation
In the wake of a cold front a high will establish over the Bight today, with the high expected to move to the north of Tasmania on Tuesday morning and lie over the northern Tasman Sea during Wednesday and Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

River Tamar - Bonnie Beach Temperature Statistics View More

September Temperature

Launceston (Ti Tree Bend) (29km)

  • Lowest 11 September, 2026

    0.8 °C

  • Average September

    11.5 °C

  • Highest 19 September, 2026

    22.9 °C

Climate (2021–2026)

Launceston (Ti Tree Bend) (29km)

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  • Average Low 2021–2026

    7.8 °C

  • Average 2021–2026

    13.2 °C

  • Average High 2021–2026

    19.4 °C
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