Devon weather in August 2025

Expect daytime maximum temperatures of 20°C in Devon, UK in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 70 mm of rainfall in the month.

  • 20°C maximum daytime temperature in August in Devon (Exeter)20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in August in Devon (Exeter)13
    13 days with some rainfall
  • 12°C minimum night-time temperature in August in Devon (Exeter)12
    12°C min night temperature
  • 14 hours of daylight per day in August in Devon (Exeter)14
    14 hours of daylight per day
  • No heat & humidity in August in Devon (Exeter)0
    No heat & humidity
  • 70 mm monthly rainfall in August in Devon (Exeter)70
    70 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Devon (Exeter)6
    6 (High) UV index

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The August weather guide for Devon (Exeter) 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.

Top Devon destinations

Below are average maximum temperatures at popular countries, regions and places in Devon in August. Select a holiday destination to see more weather parameters.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the UK

How hot is it in Devon in August?

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

How sunny is it in Devon in August?

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

Does it rain in Devon in August?

There are usually 13 days with some rain in Exeter, Devon in August and the average monthly rainfall is 70mm.

Devon August sunrise & sunset times

Browse the sunrise and sunset times for Devon in August 2025. Select a month to view Devon sunrise and sunset times for the next 12 months. The Devon sunrise and sunset times shown below are for Exeter.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:41 19:59
Saturday, 16th August 2025 05:04 19:32
Sunday, 31st August 2025 05:27 19:01

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