The Sisters Weather Forecast

    • 15
    • 31

    Partly cloudy

    • 14
    • 23

    Showers

    • 12
    • 20

    Showers

    • 9
    • 16

    Shower or two

    • 8
    • 16

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 6
    • 19

    Mostly sunny

Today 29 Sep Mount Lofty Ranges

Partly cloudy. Winds north to northwesterly 25 to 35 km/h tending northwest to southwesterly 15 to 20 km/h in the evening then becoming light in the late evening.

South Central Coastal Waters

Wind
West to northwesterly 10 to 15 knots, reaching up to 20 knots inshore in the late afternoon. Winds decreasing to about 10 knots in the evening.
Seas
1.5 metres, decreasing to 1 metre by early evening.
1st Swell
Southwesterly 2 metres.
Weather
Cloudy.
Weather Situation
A series of slow moving troughs will move over the west of SA on Tuesday then will across remaining parts of the state on Wednesday and Thursday as a couple of cold fronts move across waters to the south. A high pressure system will become established south of the Bight during Friday and persist there on Saturday. A trough will extend from WA over the far west of SA over the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Sisters Temperature Statistics View More

September Temperature

Encounter Bay (8km)

  • Lowest 18 September, 2026

    2 °C

  • Average September

    14.5 °C

  • Highest 19 September, 2026

    26.5 °C

Climate (2021–2026)

Encounter Bay (8km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.3 °C

  • Average High 2021–2026

    20.7 °C
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