River Tamar - Shag Head Weather Forecast

    • 12
    • 19

    Becoming windy. Partly cloudy

    • 8
    • 13

    Mostly sunny

    • 2
    • 14

    Partly cloudy

    • 5
    • 15

    Mostly sunny

    • 7
    • 17

    Partly cloudy

    • 11
    • 19

    Shower or two

    • 11
    • 18

    Shower or two

Today 20 Sep Central North

Partly cloudy. Slight chance of a shower, most likely this evening. Damaging winds possible from early afternoon. Winds north to northwesterly 25 to 35 km/h increasing to 55 km/h before tending west to northwesterly 25 to 40 km/h during the day. Daytime maximum temperatures between 19 and 22.

Central North Coastal Waters

Stanley to Flinders Island
Wind
Northwesterly 15 to 20 knots increasing to 20 to 30 knots in the morning then turning westerly 25 to 30 knots in the late afternoon.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning, then increasing to 2 to 3 metres around midday.
1st Swell
Westerly around 1 metre, increasing to 1.5 to 2 metres later in the evening.
Weather
Mostly sunny.
Weather Situation
Warm northwesterly winds expected ahead of a cold front crossing the state this evening. The flow will tend colder southwesterly on Monday morning, with a high to establish over the Bight later Monday. This high is expected to move to the north of Tasmania on Tuesday morning and lie over the northern Tasman Sea during Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

River Tamar - Shag Head Temperature Statistics View More

September Temperature

Devonport Airport (34km)

  • Lowest 16 September, 2026

    1.4 °C

  • Average September

    11.2 °C

  • Highest 11 September, 2026

    21.1 °C

Climate (2021–2026)

Devonport Airport (34km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.1 °C

  • Average High 2021–2026

    17.8 °C
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