Builth Wells weather in September 2025

Expect 61°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Builth Wells in September. Check more long-term weather averages for Builth Wells in September before you book your next holiday to Wales in 2025/2026.

  • 61°F maximum daytime temperature in September in Builth Wells61
    61°F max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in September in Builth Wells16
    16 days with some rainfall
  • 46°F minimum night-time temperature in September in Builth Wells46
    46°F min night temperature
  • 13 hours of daylight per day in September in Builth Wells13
    13 hours of daylight per day
  • No heat & humidity in September in Builth Wells0
    No heat & humidity
  • 4.4 inches monthly rainfall in September in Builth Wells4.4
    4.4 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Builth Wells4
    4 (Moderate) UV index

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The September weather guide for Wales (Builth Wells) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about Wales

How warm is it in Builth Wells in September?

Daytime temperatures usually reach 61°F in Builth Wells in September, falling to 46°F at night.

How sunny is it in Builth Wells in September?

There are normally 4 hours of bright sunshine each day in Builth Wells in September - that's 30% of daylight hours.

Does it rain in Builth Wells in September?

There are usually 16 days with some rain in Builth Wells in September and the average monthly rainfall is 4.4 inches.

Builth Wells September sunrise & sunset times

Browse the sunrise and sunset times for Builth Wells in September 2025. Select a month to view Builth Wells sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:25 19:01
Monday, 15th September 2025 05:48 18:28
Tuesday, 30th September 2025 06:13 17:53

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