Coleraine Weather Forecast

    • 12
    • 23

    Shower or two. Windy

    • 7
    • 14

    Cloudy

    • 0
    • 16

    Morning frost. Sunny

    • 3
    • 21

    Sunny

    • 10
    • 23

    Cloudy

    • 14
    • 25

    Partly cloudy

    • 12
    • 21

    Possible shower

Today 20 Sep South West

Becoming cloudy. High chance of showers in the south, medium chance elsewhere. Damaging winds possible near the Otways, easing later in the day. Winds northerly 25 to 35 km/h increasing to 35 to 50 km/h in the morning then turning westerly 30 to 45 km/h in the early afternoon. Overnight temperatures falling to between 9 and 12 with daytime temperatures reaching the low to mid 20s.

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  • Temperature Forecast Bureau of Meteorology

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Coleraine Temperature Statistics View More

September Temperature

Casterton (31km)

  • Lowest 8 September, 2026

    -1 °C

  • Average September

    11.1 °C

  • Highest 18 September, 2026

    21.2 °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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