Cotswolds weather in September 2025

Expect daytime maximum temperatures of 18°C in Cotswolds, UK in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 63 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in Cotswolds (Cirencester)18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in September in Cotswolds (Cirencester)14
    14 days with some rainfall
  • 10°C minimum night-time temperature in September in Cotswolds (Cirencester)10
    10°C min night temperature
  • 13 hours of daylight per day in September in Cotswolds (Cirencester)13
    13 hours of daylight per day
  • No heat & humidity in September in Cotswolds (Cirencester)0
    No heat & humidity
  • 63 mm monthly rainfall in September in Cotswolds (Cirencester)63
    63 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Cotswolds (Cirencester)4
    4 (Moderate) UV index

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The September weather guide for Cotswolds (Cirencester) 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 the UK

How hot is it in the Cotswolds in September?

Daytime temperatures usually reach 18°C in Cirencester, Cotswolds in September, falling to 10°C at night.

How sunny is it in the Cotswolds in September?

There are normally 5 hours of bright sunshine each day in Cirencester, Cotswolds in September - that's 36% of daylight hours.

Does it rain in the Cotswolds in September?

There are usually 14 days with some rain in Cirencester, Cotswolds in September and the average monthly rainfall is 63mm.

Cotswolds September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:20 18:54
Monday, 15th September 2025 05:43 18:22
Tuesday, 30th September 2025 06:07 17:47

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