Sisters Bay Weather Forecast

    • 10
    • 16

    Sunny

    • 8
    • 23

    Mostly sunny

    • 4
    • 11

    Shower or two. Becoming windy

    • 5
    • 14

    Partly cloudy

    • 6
    • 15

    Partly cloudy

    • 10
    • 16

    Possible shower

    • 11
    • 19

    Shower or two

Today 19 Sep South East

Partly cloudy. Slight chance of a shower in the south in the early morning. Near zero chance of rain elsewhere. Damaging winds possible. Winds westerly 35 to 55 km/h decreasing to 35 to 50 km/h before dawn then turning north to northwesterly 15 to 20 km/h in the evening. Overnight temperatures falling to between 8 and 12 with daytime temperatures reaching between 13 and 19.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
Westerly 20 to 30 knots, reaching up to 35 knots offshore during the morning. Winds tending southwesterly in the morning then tending northwest to southwesterly 15 to 25 knots in the evening.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres later in the evening.
1st Swell
Southwesterly 2 to 4 metres.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sisters Bay Temperature Statistics View More

September Temperature

Tasman Island (31km)

  • Lowest 16 September, 2026

    3.4 °C

  • Average September

    10.5 °C

  • Highest 14 September, 2026

    19.9 °C

Climate (2021–2026)

Tasman Island (31km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.6 °C
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