Arno Bay Weather Forecast

    • 5
    • 27

    Mostly sunny

    • 8
    • 21

    Possible shower. Windy

    • 7
    • 17

    Cloudy

    • 8
    • 19

    Possible shower

    • 9
    • 17

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 7
    • 21

    Cloud clearing

Today 18 Sep Eastern Eyre Peninsula

Mostly sunny. Winds northerly 15 to 25 km/h increasing to 25 to 40 km/h in the morning then shifting west to southwesterly 15 to 20 km/h in the late afternoon. Daytime maximum temperatures in the high 20s.

Spencer Gulf Coastal Waters

Wind
Northerly 15 to 20 knots shifting west to southwesterly 10 to 15 knots in the late afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing to 1 metre by early evening.
1st Swell
South to southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Mostly sunny.
Weather Situation
A high pressure system lies over NSW with a ridge extending into the east of the state. A weak trough will move over South Australian waters later today, settling over the far northeast tonight before clearing on Friday. A cold front will pass over the south during Friday afternoon with a southwesterly flow persisting through the weekend as a ridge of high pressure extends over northern parts of the state.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Arno Bay Temperature Statistics View More

September Temperature

Cleve Aerodrome (23km)

  • Lowest 12 September, 2025

    4.2 °C

  • Average September

    13.5 °C

  • Highest 6 September, 2025

    30.4 °C

Climate (2020–Present)

Cleve Aerodrome (23km)

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  • Average Low 2020–2025

    11.4 °C

  • Average 2020–2025

    16.1 °C

  • Average High 2020–2025

    22.3 °C
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