Shag Rock Weather Forecast

    • 7
    • 19

    Partly cloudy

    • 10
    • 17

    Cloudy

    • 7
    • 18

    Partly cloudy

    • 8
    • 20

    Partly cloudy

    • 10
    • 18

    Shower

    • 9
    • 16

    Shower

    • 6
    • 17

    Partly cloudy

Today 20 Aug West Coast

Mostly sunny. Slight chance of a shower south of Streaky Bay during this afternoon and evening. Near zero chance of rain elsewhere. Light winds becoming northwest to southwesterly 15 to 25 km/h in the middle of the day then tending southeast to southwesterly 15 to 20 km/h in the late afternoon. Daytime maximum temperatures between 19 and 22.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
North to northwesterly 10 to 15 knots shifting south to southwesterly below 10 knots in the afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Mostly sunny.
Weather Situation
A cold front clears to the east Wednesday evening. Weak troughs clip the southeast in a broad westerly flow on Thursday and Friday, as a ridge of high pressure is expected to approach South Australia from the west. The high centre is expected to linger over the state on the weekend.
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  • 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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