Pontllyfni Weather Forecast

    • 12
    • 15

    Cloudy

    • 15
    • 18

    Overcast

    • 13
    • 18

    Cloudy

    • 7
    • 15

    Partly cloudy

    • 13
    • 17

    Partly cloudy

    • 11
    • 17

    Cloudy

Today 20 Sep Wales

A fine day on Sunday with lighter winds and plenty of sunny spells. The sunshine may turn hazy at times, but staying bright and feeling warm. Maximum temperature 21 °C.

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Pontllyfni Temperature Statistics

September Temperature

Valley (26km)

  • Lowest 16 September, 2026

    13.3 °C

  • Average September

    16.2 °C

  • Highest 6 September, 2026

    21.7 °C

Climate (2021–2026)

Valley (26km)

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  • Average Low 2021–2026

    9.1 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14 °C
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