Shag Rock Weather Forecast

    • 14
    • 24

    Storm

    • 14
    • 21

    Shower

    • 11
    • 19

    Shower

    • 8
    • 20

    Partly cloudy

    • 9
    • 21

    Partly cloudy

    • 9
    • 22

    Partly cloudy

    • 10
    • 19

    Cloudy

Today 30 Sep West Coast

Cloudy. High chance of showers. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding west of Ceduna. Winds northwest to southwesterly 15 to 20 km/h becoming light in the evening.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
Variable about 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 2 metres.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm.
Weather Situation
A series of troughs over SA will slowly move east ahead of a high pressure system that moves into the Bight on Friday. A cold front moving across the Southern Ocean will clip the far southeast late Thursday, with a low pressure system developing near the Victorian border on Friday. Another trough near the WA border is expected to develop on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Shag Rock Temperature Statistics View More

September Temperature

Streaky Bay (44km)

  • Lowest 17 September, 2026

    3.3 °C

  • Average September

    16.7 °C

  • Highest 28 September, 2026

    34.8 °C

Climate (2021–2026)

Streaky Bay (44km)

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  • Average Low 2021–2026

    11.8 °C

  • Average 2021–2026

    16.5 °C

  • Average High 2021–2026

    23.6 °C
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