Tarnma Weather Forecast

    • 19
    • 39

    Partly cloudy

    • 21
    • 43

    Partly cloudy

    • 28
    • 43

    Partly cloudy

    • 20
    • 36

    Sunny

    • 21
    • 39

    Sunny

    • 25
    • 41

    Partly cloudy

    • 22
    • 34

    Partly cloudy

Today 25 Jan Mid North

Mostly sunny. The chance of a thunderstorm with little or no rainfall in the late afternoon and evening. Winds southeast to southwesterly 15 to 20 km/h tending west to southwesterly 15 to 25 km/h in the middle of the day then tending southeast to southwesterly 15 to 20 km/h in the evening. Daytime maximum temperatures 34 to 42.

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Tarnma Temperature Statistics View More

January Temperature

Eudunda (12km)

  • Lowest 20 January, 2026

    4.6 °C

  • Average January

    20.3 °C

  • Highest 8 January, 2026

    44.5 °C

Climate (2021–Present)

Eudunda (12km)

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  • Average Low 2021–2026

    9.8 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    21.2 °C
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