Charleston Weather Forecast

    • 11
    • 22

    Partly cloudy

    • 8
    • 22

    Partly cloudy

    • 9
    • 20

    Cloud clearing

    • 8
    • 25

    Sunny

    • 13
    • 31

    Sunny

    • 16
    • 35

    Sunny

    • 19
    • 36

    Sunny

Today 23 Dec Mount Barker

Partly cloudy. Winds southwesterly 15 to 20 km/h tending southerly in the late afternoon then becoming light in the late evening.

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Charleston Temperature Statistics View More

December Temperature

Mount Barker (18km)

  • Lowest 7 December, 2025

    5.6 °C
  • Average December

    17.9 °C
  • Highest 18 December, 2025

    38 °C

Climate (2020–Present)

Mount Barker (18km)

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  • Average Low 2020–2025

    9.3 °C
  • Average 2020–2025

    13.9 °C
  • Average High 2020–2025

    21 °C
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