Shag Rock Weather Forecast

    • 7
    • 19

    Cloudy

    • 9
    • 17

    Cloudy

    • 7
    • 19

    Partly cloudy

    • 7
    • 19

    Cloudy

    • 10
    • 17

    Shower

    • 9
    • 17

    Shower

    • 6
    • 19

    Partly cloudy

Today 20 Aug West Coast

Mostly clear. Slight chance of a shower south of Streaky Bay early this evening. Near zero chance of rain elsewhere. Winds west to southwesterly 15 to 20 km/h turning south to southeasterly in the late afternoon.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
South to southwesterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A trough moves over the southeast Thursday evening. A high pressure system moves into the west on Friday and continues moving slowly eastwards to be situated in the Tasman Sea on Sunday. A low pressure system and associated trough move into the far west on Sunday and then moves across the state on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Shag Rock Temperature Statistics View More

August Temperature

Streaky Bay (44km)

  • Lowest 10 August, 2026

    1.5 °C

  • Average August

    11.5 °C

  • Highest 18 August, 2026

    21.5 °C

Climate (2021–2026)

Streaky Bay (44km)

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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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