Glynneath Weather Forecast

    • 15
    • 21

    Cloudy

    • 10
    • 18

    Partly cloudy

    • 14
    • 19

    Cloudy

    • 12
    • 18

    Light rain

    • 13
    • 17

    Partly cloudy

    • 14
    • 18

    Light rain shower

    • 15
    • 17

    Light rain shower

Today 22 Sep Wales

Cloud remains in the north but lifts and breaks through the day. Brighter in the south with more sunny spells. Another warm with temperatures above average. Maximum temperature 23 °C.

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Glynneath Temperature Statistics

September Temperature

Sennybridge (34km)

  • Lowest 10 September, 2026

    5.1 °C

  • Average September

    13.8 °C

  • Highest 6 September, 2026

    23.2 °C

Climate (2021–2026)

Sennybridge (34km)

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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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