Coleraine Weather Forecast

    • 8
    • 15

    Possible shower

    • 7
    • 14

    Morning shower or two

    • 3
    • 15

    Becoming cloudy

    • 5
    • 14

    Partly cloudy

    • 4
    • 16

    Partly cloudy

    • 4
    • 19

    Mostly sunny

    • 8
    • 21

    Partly cloudy

Today 6 Sep South West

Cloudy. Medium chance of showers. Winds westerly 20 to 30 km/h decreasing to 15 to 20 km/h in the early morning then becoming west to southwesterly and light in the evening. Overnight temperatures falling to around 8 with daytime temperatures reaching around 16.

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Coleraine Temperature Statistics View More

September Temperature

Casterton (31km)

  • Lowest 1 September, 2026

    6.7 °C

  • Average September

    12.2 °C

  • Highest 1 September, 2026

    18.7 °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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