Selwyn Weather Forecast

    • 21
    • 36

    Partly cloudy

    • 22
    • 36

    Partly cloudy

    • 20
    • 31

    Partly cloudy

    • 16
    • 30

    Sunny

    • 13
    • 30

    Sunny

    • 14
    • 29

    Sunny

    • 13
    • 29

    Sunny

Today 18 Sep North West

Mostly sunny. Slight chance of a shower in the southwest, near zero chance elsewhere. Winds northeasterly 15 to 25 km/h turning east to southeasterly 15 to 20 km/h during the afternoon and evening. Daytime maximum temperatures in the mid to high 30s.

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Selwyn Temperature Statistics View More

September Temperature

The Monument Airport (40km)

  • Lowest 1 September, 2025

    3.8 °C

  • Average September

    22.5 °C

  • Highest 7 September, 2025

    37.2 °C

Climate (2020–Present)

The Monument Airport (40km)

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  • Average Low 2020–2025

    16.9 °C

  • Average 2020–2025

    24.5 °C

  • Average High 2020–2025

    32.4 °C
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