Mornington Island Airport Weather Forecast

    • 17
    • 30

    Cloud clearing

    • 19
    • 31

    Mostly sunny

    • 20
    • 32

    Mostly sunny

    • 21
    • 31

    Sunny

    • 21
    • 30

    Sunny

    • 21
    • 30

    Sunny

    • 20
    • 30

    Sunny

Today 4 Sep Gulf Country

Mostly sunny. Light winds becoming east to northeasterly 15 to 25 km/h during the morning then becoming light during the evening. Overnight temperatures falling to between 14 and 18 with daytime temperatures reaching the low to mid 30s.

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Mornington Island Airport Temperature Statistics View More

September Temperature

Sweers Island (67km)

  • Lowest 1 September, 2025

    16.9 °C

  • Average September

    20.5 °C

  • Highest 1 September, 2025

    26.7 °C

Climate (2020–Present)

Sweers Island (67km)

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  • Average Low 2020–2025

    23.4 °C

  • Average 2020–2025

    26.7 °C

  • Average High 2020–2025

    30.3 °C
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