Rocky Island Weather Forecast

    • 17
    • 19

    Shower

    • 15
    • 17

    Shower

    • 15
    • 16

    Shower

    • 15
    • 17

    Partly cloudy

    • 16
    • 20

    Partly cloudy

    • 18
    • 19

    Shower

    • 15
    • 17

    Shower

Today 24 Sep Lower Eyre Peninsula

Cloudy. Medium chance of showers. Winds north to northeasterly 15 to 20 km/h increasing to 25 km/h before shifting west to southwesterly 15 to 20 km/h in the early afternoon. Daytime maximum temperatures in the mid to high 20s.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
North to northeasterly 10 to 15 knots shifting south to southwesterly below 10 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
Weather
Cloudy. 60% chance of showers.
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

Rocky Island Temperature Statistics View More

September Temperature

Cummins Airport (41km)

  • Lowest 17 September, 2026

    1.1 °C

  • Average September

    12.8 °C

  • Highest 19 September, 2026

    28.3 °C

Climate (2021–2026)

Cummins Airport (41km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    15.7 °C

  • Average High 2021–2026

    22.9 °C
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