Coleraine Weather Forecast

    • 4
    • 12

    Showers

    • 3
    • 13

    Cloudy

    • 3
    • 14

    Partly cloudy

    • 5
    • 16

    Mostly sunny

    • 7
    • 13

    Showers increasing

    • 8
    • 12

    Showers

    • 4
    • 12

    Showers easing

Today 4 Aug South West

Cloudy. Very high chance of showers, becoming less likely late this afternoon and evening. Winds west to northwesterly 20 to 30 km/h tending west to southwesterly in the middle of the day then becoming light in the evening. Daytime maximum temperatures around 12.

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Coleraine Temperature Statistics View More

August Temperature

Casterton (31km)

  • Lowest 1 August, 2026

    -1.3 °C

  • Average August

    7.8 °C

  • Highest 2 August, 2026

    14.3 °C

Climate (2021–2026)

Casterton (31km)

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  • Average Low 2021–2026

    8.5 °C

  • Average 2021–2026

    13.6 °C

  • Average High 2021–2026

    19.8 °C
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