Hay-on-Wye weather in September 2025

Expect 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Hay-on-Wye in September. Check more long-term weather averages for Hay-on-Wye in September before you book your next holiday to Wales in 2025/2026.

  • 17°C maximum daytime temperature in September in Hay-on-Wye17
    17°C max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in September in Hay-on-Wye16
    16 days with some rainfall
  • 9°C minimum night-time temperature in September in Hay-on-Wye9
    9°C min night temperature
  • 13 hours of daylight per day in September in Hay-on-Wye13
    13 hours of daylight per day
  • No heat & humidity in September in Hay-on-Wye0
    No heat & humidity
  • 87 mm monthly rainfall in September in Hay-on-Wye87
    87 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Hay-on-Wye4
    4 (Moderate) UV index

More about Hay-on-Wye

Hay-on-Wye by month

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The September weather guide for Wales (Hay-on-Wye) 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 / mm)  |  Imperial (°F / inches)

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More about Wales

How warm is it in Hay-on-Wye in September?

Daytime temperatures usually reach 17°C in Hay-on-Wye in September, falling to 9°C at night.

How sunny is it in Hay-on-Wye in September?

There are normally 4 hours of bright sunshine each day in Hay-on-Wye in September - that's 32% of daylight hours.

Does it rain in Hay-on-Wye in September?

There are usually 16 days with some rain in Hay-on-Wye in September and the average monthly rainfall is 87mm.

Hay-on-Wye September sunrise & sunset times

Browse the sunrise and sunset times for Hay-on-Wye in September 2025. Select a month to view Hay-on-Wye sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:24 18:59
Monday, 15th September 2025 05:47 18:27
Tuesday, 30th September 2025 06:12 17:52

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