Shag Rock Weather Forecast

    • 9
    • 17

    Shower

    • 8
    • 17

    Cloudy

    • 8
    • 18

    Cloudy

    • 9
    • 17

    Cloudy

    • 9
    • 18

    Cloudy

    • 6
    • 20

    Partly cloudy

    • 10
    • 20

    Shower

Today 12 Aug West Coast

Cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds westerly 15 to 25 km/h tending southwesterly in the middle of the day then becoming light in the evening. Daytime maximum temperatures around 17.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Southwesterly 10 to 15 knots, reaching up to 20 knots offshore in the late morning and early afternoon. Winds decreasing to about 10 knots in the late evening.
Seas
1 to 1.5 metres, decreasing below 1 metre by early evening.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A cold front crossing the eastern parts of SA will continue moving eastwards and cross the rest of the state early today. A ridge of high pressure will then push into SA from the west today, with the associated high moving over SA on Thursday. The high then gradually drifts southwards to be located in vicinity of Tasmania over the weekend, as it continues extending a ridge across SA.
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

    11.6 °C

  • Highest 8 August, 2026

    19.1 °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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