Grantham Island Weather Forecast

    • 15
    • 23

    Cloud clearing

    • 14
    • 23

    Partly cloudy

    • 16
    • 23

    Wind easing. Partly cloudy

    • 17
    • 24

    Sunny

    • 18
    • 26

    Partly cloudy

    • 20
    • 27

    Shower or two

    • 20
    • 28

    Cloudy

Today 23 Feb Port Lincoln

Cloud clearing. Winds southeasterly 20 to 25 km/h.

Spencer Gulf Coastal Waters

Wind
South to southeasterly 15 to 25 knots.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, increasing to 1 to 2 metres north of Cowell to Wallaroo by early evening.
1st Swell
South to southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres during the morning.
Weather
Cloud clearing.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grantham Island Temperature Statistics View More

February Temperature

Port Lincoln Airport (19km)

  • Lowest 4 February, 2026

    10.6 °C

  • Average February

    20.3 °C

  • Highest 16 February, 2026

    34.5 °C

Climate (2021–Present)

Port Lincoln Airport (19km)

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  • Average Low 2021–2026

    11.4 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
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