Trefechan Weather Forecast

    • 14
    • 15

    Cloudy

    • 10
    • 17

    Light rain

    • 11
    • 15

    Partly cloudy

    • 12
    • 17

    Overcast

    • 11
    • 18

    Partly cloudy

    • 8
    • 16

    Cloudy

Today 18 Sep Wales

Dry at first, but increasingly cloudy as rain moves in from the west during the morning. Turning heavy for a time, especially over western hills. Rather windy. Maximum temperature 18 °C.

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Trefechan Temperature Statistics

September Temperature

Sennybridge (35km)

  • Lowest 10 September, 2026

    5.1 °C

  • Average September

    14.2 °C

  • Highest 6 September, 2026

    23.2 °C

Climate (2021–2026)

Sennybridge (35km)

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  • Average Low 2021–2026

    5.7 °C

  • Average 2021–2026

    9.5 °C

  • Average High 2021–2026

    13 °C
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