Diamond Island Weather Forecast

    • 10
    • 22

    Mostly clear

    • 12
    • 20

    Late shower or two

    • 14
    • 18

    Shower or two

    • 15
    • 18

    Possible shower

    • 14
    • 18

    Possible shower

    • 14
    • 18

    Possible shower

    • 14
    • 18

    Possible shower

Today 12 Jan East Coast

Mostly sunny. Winds northwest to northeasterly 20 to 30 km/h tending northwest to southwesterly 15 to 20 km/h in the late evening. Daytime maximum temperatures in the low to mid 20s.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northerly 15 to 25 knots, reaching up to 30 knots in the evening.
Seas
1 to 2 metres.
1st Swell
South to southeasterly around 1 metre.
Weather
Mostly clear.
Weather Situation
A high pressure ridge over Tasmania will persist in the coming days with a trough developing through eastern parts of Bass Strait on Tuesday. This trough will develop into a broad low pressure system off the eastern coast of Victoria by Thursday while a secondary high pressure system begins to move in far to the west of Tasmania, expected to slip to the south of the state on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

January Temperature

Bicheno (Council Depot) (2km)

  • Lowest 1 January, 2026

    9 °C

  • Average January

    18 °C

  • Highest 9 January, 2026

    26 °C

Climate (2021–Present)

Bicheno (Council Depot) (2km)

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  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    14.2 °C

  • Average High 2021–2026

    18.1 °C
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