The Sisters Weather Forecast

    • 5
    • 23

    Clear

    • 9
    • 18

    Shower or two. Becoming windy

    • 7
    • 16

    Possible shower

    • 9
    • 18

    Shower or two

    • 9
    • 16

    Possible shower

    • 8
    • 17

    Cloudy

    • 8
    • 18

    Cloudy

Today 18 Sep Mount Lofty Ranges

Sunny. Winds northerly 20 to 30 km/h increasing to 35 km/h before turning northwesterly 15 to 20 km/h in the late morning and afternoon. Daytime maximum temperatures between 19 and 23.

South Central Coastal Waters

Wind
Westerly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
West to southwesterly 2.5 metres.
Weather
Clear.
Weather Situation
A high pressure system lies over the Tasman Sea with a ridge extending into the east of the state. A weak trough over South Australian waters will continue moving through eastern waters tonight. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Sisters Temperature Statistics View More

September Temperature

Encounter Bay (8km)

  • Lowest 2 September, 2025

    3.5 °C

  • Average September

    14.3 °C

  • Highest 6 September, 2025

    27.4 °C

Climate (2020–Present)

Encounter Bay (8km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    15.1 °C

  • Average High 2020–2025

    20.6 °C
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