Builth Wells weather in August 2026

Expect daytime maximum temperatures of 18°C in Builth Wells, Wales in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 92 mm of rainfall in the month.

  • 18°C maximum daytime temperature in August in Builth Wells18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in August in Builth Wells16
    16 days with some rainfall
  • 10°C minimum night-time temperature in August in Builth Wells10
    10°C min night temperature
  • 15 hours of daylight per day in August in Builth Wells15
    15 hours of daylight per day
  • No heat & humidity in August in Builth Wells0
    No heat & humidity
  • 92 mm monthly rainfall in August in Builth Wells92
    92 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Builth Wells5
    5 (Moderate) UV index

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The August 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 / mm)  |  Imperial (°F / inches)

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More about Wales

How hot is it in Builth Wells in August?

Daytime temperatures usually reach 20°C in Builth Wells in August, falling to 12°C at night.

How sunny is it in Builth Wells in August?

There are normally 6 hours of bright sunshine each day in Builth Wells in August - that's 41% of daylight hours.

How warm is the sea around Builth Wells in August?

The average sea temperature around Builth Wells in August is 18°C.

Does it rain in Builth Wells in August?

There are usually 15 days with some rain in Builth Wells in August and the average monthly rainfall is 81mm.

Builth Wells August sunrise & sunset times

Browse the sunrise and sunset times for Builth Wells in August 2026. Select a month to view Builth Wells sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 04:35 20:04
Sunday, 16th August 2026 04:59 19:36
Monday, 31st August 2026 05:23 19:03

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