Shag Rock Weather Forecast

    • 16
    • 28

    Cloudy

    • 13
    • 24

    Shower

    • 13
    • 21

    Shower

    • 13
    • 26

    Partly cloudy

    • 15
    • 30

    Partly cloudy

    • 17
    • 26

    Shower

    • 13
    • 24

    Shower

Today 24 Sep West Coast

Partly cloudy. High chance of showers west of Nullarbor, slight chance elsewhere. The chance of a thunderstorm west of Ceduna. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the middle of the day then tending southeast to southwesterly in the late afternoon. Daytime maximum temperatures 24 to 31.

Upper West Coastal Waters

Fowlers Bay to Elliston
Wind
North to northeasterly 10 to 15 knots shifting south to southwesterly in the late morning and early afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
Weather
Cloudy.
Weather Situation
A high pressure system centred over the Tasman Sea extends a ridge westwards over central and eastern SA and a low pressure trough extends from WA over western SA. This trough will be very slow-moving for the rest of the week and over the weekend and the ridge will move away to the east. A weakening cold front will slip across southern coasts late Thursday and early Friday.
Graph Plots Open in Graphs

  • 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

    15.2 °C

  • Highest 19 September, 2026

    29.9 °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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