Tunnel Bay Weather Forecast

    • 9
    • 18

    Partly cloudy

    • 12
    • 20

    Shower or two

    • 12
    • 18

    Possible shower

    • 11
    • 23

    Partly cloudy

    • 15
    • 22

    Possible shower

    • 12
    • 18

    Possible shower

    • 10
    • 17

    Partly cloudy

Today 21 Apr South East

Mostly sunny. Winds northeasterly 15 to 25 km/h increasing to 20 to 30 km/h in the middle of the day. Daytime maximum temperatures between 16 and 21.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Northeasterly 15 to 25 knots, reaching up to 30 knots offshore in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday, then increasing to 1.5 to 2 metres by early evening.
1st Swell
West to southwesterly 1.5 metres, increasing to 1.5 to 2 metres around midday.
Weather
Partly cloudy.
Weather Situation
A high over the Southern Tasman Sea extends a ridge over the state. A weak cold front is expected to approach Tasmania during Wednesday, then cross the state late Wednesday and early Thursday ahead of another high that will move over Tasmania and into the Tasman Sea on Thursday. A northerly airstream will be maintained on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Tunnel Bay Temperature Statistics View More

April Temperature

Tasman Island (21km)

  • Lowest 13 April, 2026

    5.8 °C

  • Average April

    11.5 °C

  • Highest 1 April, 2026

    22 °C

Climate (2021–Present)

Tasman Island (21km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.5 °C
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