Chepstow weather in August 2025

Expect 21°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Chepstow in August. Check more long-term weather averages for Chepstow in August before you book your next holiday to Wales in 2025/2026.

  • 21°C maximum daytime temperature in August in Chepstow21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in August in Chepstow14
    14 days with some rainfall
  • 12°C minimum night-time temperature in August in Chepstow12
    12°C min night temperature
  • 15 hours of daylight per day in August in Chepstow15
    15 hours of daylight per day
  • No heat & humidity in August in Chepstow0
    No heat & humidity
  • 68 mm monthly rainfall in August in Chepstow68
    68 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Chepstow5
    5 (Moderate) UV index

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The August weather guide for Wales (Chepstow) 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 Chepstow in August?

Daytime temperatures usually reach 21°C in Chepstow in August, falling to 12°C at night.

How sunny is it in Chepstow in August?

There are normally 6 hours of bright sunshine each day in Chepstow in August - that's 40% of daylight hours.

Does it rain in Chepstow in August?

There are usually 14 days with some rain in Chepstow in August and the average monthly rainfall is 68mm.

Chepstow August sunrise & sunset times

Browse the sunrise and sunset times for Chepstow in August 2025. Select a month to view Chepstow sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:34 19:59
Saturday, 16th August 2025 04:58 19:31
Sunday, 31st August 2025 05:22 18:59

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