River Tamar - Johnstons Flats Weather Forecast

    • 7
    • 13

    Showers. Windy

    • 4
    • 12

    Sunny

    • 4
    • 14

    Shower or two

    • 6
    • 15

    Showers

    • 6
    • 13

    Showers

    • 3
    • 12

    Shower or two

    • 4
    • 13

    Showers

Today 19 Jul Central North

Cloudy. Very high chance of showers, most likely during this afternoon and evening. Damaging winds possible. Winds north to northwesterly 35 to 55 km/h. Daytime maximum temperatures between 10 and 13.

Central North Coastal Waters

Stanley to Flinders Island
Wind
Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the early morning. Winds reaching 30 to 35 knots in the middle of the day, then turning westerly 25 to 30 knots in the early evening.
Seas
1.5 to 2.5 metres, increasing to 2.5 to 4 metres during the morning.
1st Swell
Westerly 1 to 1.5 metres, tending northwesterly 1.5 to 2.5 metres during the morning, then tending west to northwesterly 2 to 3 metres during the afternoon.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A northwesterly airstream persists over Tasmania ahead of a strong cold front, expected to cross the state from the west on Saturday. A high pressure system over mainland Australia extends a weak ridge over the Tasmania on Sunday, before moving into the Tasman Sea during Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

River Tamar - Johnstons Flats Temperature Statistics View More

July Temperature

Low Head (24km)

  • Lowest 1 July, 2025

    3 °C

  • Average July

    10.3 °C

  • Highest 6 July, 2025

    14.7 °C

Climate (2020–Present)

Low Head (24km)

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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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