Cape Blanche Weather Forecast

    • 11
    • 18

    Partly cloudy

    • 5
    • 21

    Sunny

    • 10
    • 29

    Partly cloudy

    • 17
    • 28

    Cloudy

    • 14
    • 31

    Partly cloudy

    • 19
    • 32

    Partly cloudy

    • 18
    • 31

    Shower

Today 21 Sep West Coast

Partly cloudy. Winds southeasterly 15 to 25 km/h. Daytime maximum temperatures between 19 and 23.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres inshore by early evening.
1st Swell
Southwesterly 3 metres, increasing to 3 to 4 metres south of Streaky Bay.
Weather
Cloudy.
Weather Situation
A high pressure system will move eastwards across waters to the south today 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. The trough will slip southeastwards over the Bight during Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Blanche Temperature Statistics View More

September Temperature

Streaky Bay (25km)

  • Lowest 17 September, 2026

    3.3 °C

  • Average September

    15.1 °C

  • Highest 19 September, 2026

    29.9 °C

Climate (2021–2026)

Streaky Bay (25km)

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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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