Cascades Bay Weather Forecast

    • 16
    • 26

    Late showers

    • 13
    • 22

    Possible shower

    • 14
    • 22

    Shower or two

    • 13
    • 24

    Sunny

    • 14
    • 22

    Sunny

    • 14
    • 27

    Showers increasing

    • 13
    • 21

    Shower or two

Today 17 Feb South East

Becoming cloudy. Very high chance of showers, most likely late this afternoon and evening. The chance of a thunderstorm late this afternoon and evening. Winds north to northeasterly 25 to 40 km/h shifting westerly 25 to 35 km/h in the evening. Daytime maximum temperatures 26 to 33.

Frederick Henry Bay and Norfolk Bay Boating

Wind
Northeasterly 15 to 25 knots tending north to northeasterly 20 to 30 knots in the middle of the day then tending northwest to northeasterly 15 to 25 knots in the evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres around midday.
Weather
Mostly sunny. 90% chance of showers. The chance of a thunderstorm this evening.
Weather Situation
A high pressure centre is to the east of Tasmania over the Tasman Sea ahead of a cold front forecast to approach from the west today, crossing the state during the afternoon. A ridge of high pressure is expected to develop over southeastern parts of the mainland on Wednesday, maintaining a westerly flow over Tasmania, until the ridge moves over Tasmania on Thursday, forecast to move eastwards over the Tasman Sea by Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cascades Bay Temperature Statistics View More

February Temperature

Tasman Island (25km)

  • Lowest 2 February, 2026

    6.9 °C

  • Average February

    14.1 °C

  • Highest 4 February, 2026

    22.7 °C

Climate (2021–Present)

Tasman Island (25km)

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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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