O B Flat Weather Forecast

    • 7
    • 17

    Showers

    • 11
    • 14

    Showers. Windy

    • 9
    • 15

    Shower or two

    • 7
    • 15

    Partly cloudy

    • 3
    • 15

    Cloudy

    • 7
    • 14

    Partly cloudy

    • 3
    • 17

    Cloud clearing

Today 4 Sep Mount Gambier

Cloudy. Very high chance of showers, becoming less likely later tonight. Winds northerly 15 to 25 km/h.

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O B Flat Temperature Statistics View More

September Temperature

Mount Gambier Airport (14km)

  • Lowest 1 September, 2026

    6.9 °C

  • Average September

    11.8 °C

  • Highest 1 September, 2026

    18.3 °C

Climate (2021–2026)

Mount Gambier Airport (14km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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