Observatory Point Weather Forecast

    • 17
    • 19

    Partly cloudy

    • 13
    • 14

    Cloudy

    • 14
    • 15

    Partly cloudy

    • 14
    • 17

    Partly cloudy

    • 17
    • 19

    Partly cloudy

    • 17
    • 17

    Shower

    • 16
    • 17

    Partly cloudy

Today 20 Sep Lower Eyre Peninsula

Becoming cloudy. Slight chance of a shower, most likely in the late afternoon and evening. Winds westerly 25 to 40 km/h turning southwesterly 15 to 25 km/h in the evening. Daytime maximum temperatures in the low 20s.

Spencer Gulf Coastal Waters

Wind
Westerly 15 to 20 knots turning southwesterly in the early afternoon. Winds 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
Mostly sunny.
Weather Situation
A cold front will cross the west of the state this morning and will track across the east of the state during the day. Another 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.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Observatory Point Temperature Statistics View More

September Temperature

Port Lincoln Airport (42km)

  • Lowest 18 September, 2026

    3.3 °C

  • Average September

    13.8 °C

  • Highest 4 September, 2026

    25.1 °C

Climate (2021–2026)

Port Lincoln Airport (42km)

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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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