Dorothee Island Weather Forecast

    • 17
    • 18

    Partly cloudy

    • 14
    • 15

    Cloudy

    • 14
    • 16

    Sunny

    • 15
    • 18

    Partly cloudy

    • 18
    • 19

    Cloudy

    • 17
    • 17

    Shower

    • 16
    • 18

    Shower

Today 20 Sep West Coast

Mostly sunny. Slight chance of a shower south of Streaky Bay, near zero chance elsewhere. Winds southwesterly 25 to 35 km/h turning southerly 15 to 20 km/h in the evening. Daytime maximum temperatures in the low to mid 20s.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
Westerly 15 to 20 knots turning south to southwesterly in the evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres by early evening.
Weather
Becoming cloudy.
Weather Situation
A cold front will cross the west of the state this morning and will track across the east of the state during the day. Another high pressure system will move eastwards across waters to the south during Monday then over Victoria and the Tasman Sea on Tuesday. This high will extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dorothee Island Temperature Statistics View More

September Temperature

Streaky Bay (134km)

  • Lowest 17 September, 2026

    3.3 °C

  • Average September

    14.8 °C

  • Highest 18 September, 2026

    27 °C

Climate (2021–2026)

Streaky Bay (134km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    16.4 °C

  • Average High 2021–2026

    23.6 °C
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