River Tamar - Supply Bay Weather Forecast

    • 10
    • 14

    Shower or two

    • 6
    • 18

    Sunny

    • 7
    • 16

    Cloud clearing

    • 4
    • 17

    Partly cloudy

    • 5
    • 15

    Partly cloudy

    • 5
    • 19

    Sunny

    • 5
    • 19

    Sunny

Today 5 Sep Central North

Partly cloudy. Medium chance of showers, becoming less likely later this evening. Winds northwesterly 25 to 35 km/h tending west to northwesterly 15 to 25 km/h in the evening then becoming light in the late evening.

Central North Coastal Waters

Stanley to Flinders Island
Wind
Westerly 20 to 30 knots, reaching up to 35 knots offshore in the evening.
Seas
2.5 to 3 metres.
1st Swell
Westerly 1 to 2 metres, increasing to 2 to 3 metres later in the evening.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm offshore in the late afternoon and evening with possible squalls.
Weather Situation
A low pressure system near the west coast is directing a west to northwesterly flow over the State. The low will cross Tasmania early Saturday evening, with a west to southwesterly airstream then becoming established in its wake. A weaker cold front embedded in the westerly flow is forecast to cross the State early Monday, followed by another later Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

River Tamar - Supply Bay Temperature Statistics View More

September Temperature

Launceston (Ti Tree Bend) (22km)

  • Lowest 4 September, 2026

    6.4 °C

  • Average September

    11.2 °C

  • Highest 1 September, 2026

    16.5 °C

Climate (2021–2026)

Launceston (Ti Tree Bend) (22km)

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  • Average Low 2021–2026

    7.8 °C

  • Average 2021–2026

    13.2 °C

  • Average High 2021–2026

    19.3 °C
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