Murninnie Beach Weather Forecast

    • 17
    • 28

    Windy

    • 11
    • 17

    Cloudy

    • 7
    • 22

    Sunny

    • 9
    • 26

    Partly cloudy

    • 13
    • 32

    Partly cloudy

    • 15
    • 32

    Partly cloudy

    • 15
    • 29

    Partly cloudy

Today 20 Sep Eastern Eyre Peninsula

Partly cloudy. Slight chance of a shower in the south later this evening. Near zero chance of rain elsewhere. Winds southwesterly 25 to 35 km/h decreasing to 15 to 25 km/h in the late evening.

Spencer Gulf Coastal Waters

Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots north of Cowell to Wallaroo in the evening.
Seas
1 to 1.5 metres.
1st Swell
South to southwesterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A trough and cold front will move to the east of SA later Sunday. A high pressure system will move eastwards across waters to the south during Monday then over Victoria and the Tasman Sea on Tuesday. This high will extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday. The trough will slip southeastwards over the Bight during Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Murninnie Beach Temperature Statistics View More

September Temperature

Whyalla Airport (32km)

  • Lowest 11 September, 2026

    3.4 °C

  • Average September

    14.6 °C

  • Highest 13 September, 2026

    28.9 °C

Climate (2021–2026)

Whyalla Airport (32km)

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  • Average Low 2021–2026

    12 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    23.8 °C
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