Diamond Island Weather Forecast

    • 14
    • 18

    Shower or two

    • 10
    • 16

    Showers increasing

    • 9
    • 13

    Shower or two

    • 6
    • 13

    Mostly sunny

    • 5
    • 14

    Mostly sunny

    • 7
    • 13

    Shower or two

    • 6
    • 12

    Shower or two

Today 18 Jun East Coast

Cloudy. Very high chance of showers. Winds north to northwesterly 15 to 25 km/h.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northerly 15 to 25 knots, reaching up to 30 knots offshore in the evening.
Seas
1.5 to 2 metres.
1st Swell
Southerly around 1 metre.
Weather
Cloudy. 70% chance of showers.
Weather Situation
A low pressure system developing in the Bight, brings a relatively warm and humid northerly airstream across Tasmania. The low centre will approach from the west on Thursday, slip to the south and extend an associated cold front over the state on Friday. A much cooler south to southwesterly airstream is expected to follow the cold front, with a ridge of high pressure forecast to develop over the state through the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

June Temperature

Bicheno (Council Depot) (2km)

  • Lowest 15 June, 2026

    4.5 °C

  • Average June

    12.3 °C

  • Highest 13 June, 2026

    19.5 °C

Climate (2021–2026)

Bicheno (Council Depot) (2km)

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  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    18.2 °C
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