Swainson Island Weather Forecast

    • 9
    • 22

    Showers developing. Windy

    • 6
    • 12

    Showers. Windy

    • 8
    • 13

    Showers easing

    • 7
    • 14

    Cloudy

    • 7
    • 17

    Possible shower

    • 11
    • 17

    Showers

    • 9
    • 13

    Showers

Today 20 Sep Western

Becoming cloudy. Very high chance of showers, most likely late this afternoon and evening. Possible small hail later tonight. Damaging winds possible. Winds northerly 35 to 50 km/h turning westerly 40 to 60 km/h during the afternoon and evening. Daytime maximum temperatures between 19 and 23.

South West Coastal Waters

South East Cape to Low Rocky Point
Wind
North to northwesterly 25 to 30 knots turning westerly 30 to 40 knots in the late afternoon.
Seas
2.5 to 3 metres, increasing to 3 to 5 metres during the morning.
1st Swell
Southwesterly 3 to 4 metres, tending westerly 4 to 5 metres later in the evening.
Weather
Partly cloudy. 95% chance of showers, with possible small hail this evening.
Weather Situation
Warm northwesterly winds expected ahead of a cold front crossing the state this evening. The flow will tend colder southwesterly on Monday morning, with a high to establish over the Bight later Monday. This high is expected to move to the north of Tasmania on Tuesday morning and lie over the northern Tasman Sea during Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swainson Island Temperature Statistics View More

September Temperature

Maatsuyker Island (43km)

  • Lowest 16 September, 2026

    3.8 °C

  • Average September

    10.3 °C

  • Highest 13 September, 2026

    19.4 °C

Climate (2021–2026)

Maatsuyker Island (43km)

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  • Average Low 2021–2026

    9.5 °C

  • Average 2021–2026

    11.7 °C

  • Average High 2021–2026

    14.3 °C
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