The Brothers Weather Forecast

    • 8
    • 23

    Sunny

    • 11
    • 27

    Sunny

    • 13
    • 22

    Becoming cloudy

    • 10
    • 17

    Cloudy

    • 8
    • 21

    Mostly sunny

    • 10
    • 25

    Partly cloudy

    • 13
    • 25

    Partly cloudy

Today 18 Sep Lower Eyre Peninsula

Sunny. Winds northerly 15 to 25 km/h tending northwesterly 20 to 30 km/h in the morning then becoming light in the late afternoon. Daytime maximum temperatures in the low to mid 20s.

Lower West Coastal Waters

Elliston to Cape Carnot
Wind
Northerly 10 to 15 knots, reaching up to 20 knots inshore in the late morning and early afternoon. Winds tending northwesterly in the middle of the day then becoming variable about 10 knots in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
Weather
Sunny.
Weather Situation
A strong high pressure system centred over Victoria will maintain a ridge across SA as it drifts slowly over NSW. A cold front will then approach from the west late Saturday and move across SA on Sunday, before another ridge pushes in behind the front. The associated high will then move eastwards across waters south from Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Brothers Temperature Statistics View More

September Temperature

Port Lincoln Airport (46km)

  • Lowest 11 September, 2026

    5.6 °C

  • Average September

    13.7 °C

  • Highest 4 September, 2026

    25.1 °C

Climate (2021–2026)

Port Lincoln Airport (46km)

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  • Average Low 2021–2026

    11.5 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
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