Joanna Weather Forecast

    • 12
    • 29

    Partly cloudy

    • 10
    • 21

    Cloudy

    • 7
    • 21

    Partly cloudy

    • 6
    • 28

    Sunny

    • 11
    • 36

    Sunny

    • 13
    • 39

    Mostly sunny

    • 16
    • 33

    Partly cloudy

Today 13 Dec Lower South East

Mostly sunny. The chance of a thunderstorm in the north in the morning. Winds southerly 15 to 25 km/h turning west to southwesterly 25 to 35 km/h in the afternoon. Overnight temperatures falling to around 12 with daytime temperatures reaching 21 to 29.

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Joanna Temperature Statistics View More

December Temperature

Naracoorte Aerodrome (18km)

  • Lowest 7 December, 2025

    3 °C

  • Average December

    16.6 °C

  • Highest 4 December, 2025

    32.9 °C

Climate (2020–Present)

Naracoorte Aerodrome (18km)

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  • Average Low 2020–2025

    8.3 °C

  • Average 2020–2025

    14.3 °C

  • Average High 2020–2025

    21.5 °C
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