Swainson Island Weather Forecast

    • 11
    • 18

    Cloudy

    • 12
    • 17

    Shower or two

    • 11
    • 19

    Cloudy

    • 11
    • 20

    Partly cloudy

    • 9
    • 21

    Partly cloudy

    • 10
    • 22

    Mostly sunny

    • 11
    • 23

    Mostly sunny

Today 12 Jan Western

Partly cloudy. Patchy fog in the early morning. Slight chance of a shower in the far south, near zero chance elsewhere. Light winds becoming west to northwesterly 15 to 20 km/h in the middle of the day then tending west to southwesterly in the early afternoon. Daytime maximum temperatures between 19 and 22.

South West Coastal Waters

South East Cape to Low Rocky Point
Wind
Westerly 15 to 20 knots decreasing to about 10 knots in the evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Westerly 2 metres.
Weather
Cloudy.
Weather Situation
A high pressure ridge over Tasmania will persist over 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 high pressure system begins to move in far to the west of Tasmania.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swainson Island Temperature Statistics View More

January Temperature

Maatsuyker Island (43km)

  • Lowest 11 January, 2026

    7.8 °C

  • Average January

    13.2 °C

  • Highest 9 January, 2026

    20.5 °C

Climate (2021–Present)

Maatsuyker Island (43km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.2 °C
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