Chepstow weather in August 2026

Expect daytime maximum temperatures of 70°F in Chepstow, Wales in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 2.7 inches of rainfall in the month.

  • 70°F maximum daytime temperature in August in Chepstow70
    70°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in August in Chepstow14
    14 days with some rainfall
  • 54°F minimum night-time temperature in August in Chepstow54
    54°F 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
  • 2.7 inches monthly rainfall in August in Chepstow2.7
    2.7 inches 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)  |  Imperial (°F)

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More about Wales

How hot is it in Chepstow in August?

Daytime temperatures usually reach 68°F in Chepstow in August, falling to 54°F 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 41% of daylight hours.

How warm is the sea around Chepstow in August?

The average sea temperature around Chepstow in August is 64°F.

Does it rain in Chepstow in August?

There are usually 15 days with some rain in Chepstow in August and the average monthly rainfall is 3.2 inches.

Chepstow August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 04:34 19:59
Sunday, 16th August 2026 04:57 19:32
Monday, 31st August 2026 05:21 19:00

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