Diamond Island Weather Forecast

    • 8
    • 20

    Partly cloudy

    • 10
    • 22

    Sunny

    • 9
    • 25

    Partly cloudy

    • 11
    • 18

    Shower or two

    • 8
    • 16

    Partly cloudy

    • 8
    • 23

    Shower or two

    • 13
    • 23

    Possible shower

Today 14 Oct East Coast

Partly cloudy. Winds westerly 30 to 45 km/h decreasing to 20 to 30 km/h in the evening then turning northwesterly in the late evening. Daytime maximum temperatures between 14 and 19.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
West to northwesterly 15 to 25 knots. Winds may reach up to 30 knots at times.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Mostly sunny.
Weather Situation
A weak cold front crosses the state this morning before a high moves over Victoria during today maintaining a westerly flow over Tasmania, before the high moves east over the Tasman Sea later Wednesday. Northwesterly flow strengthens over Tasmania during Thursday, ahead of a cold front to cross from the west later in the day.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

October Temperature

Bicheno (Council Depot) (2km)

  • Lowest 13 October, 2025

    5.2 °C

  • Average October

    13.4 °C

  • Highest 5 October, 2025

    27 °C

Climate (2020–Present)

Bicheno (Council Depot) (2km)

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  • Average Low 2020–2025

    10.5 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    18.1 °C
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