Keswick weather in September 2025

Expect daytime maximum temperatures of 14°C in Keswick in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 19 days with some rainfall and typically 272 mm of rainfall in the month.

  • 14°C maximum daytime temperature in September in Keswick14
    14°C max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in September in Keswick19
    19 days with some rainfall
  • 7°C minimum night-time temperature in September in Keswick7
    7°C min night temperature
  • 13 hours of daylight per day in September in Keswick13
    13 hours of daylight per day
  • No heat & humidity in September in Keswick0
    No heat & humidity
  • 272 mm monthly rainfall in September in Keswick272
    272 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Keswick3
    3 (Moderate) UV index

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The September weather guide for England (Keswick) 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 England

How warm is it in Keswick in September?

Daytime temperatures usually reach 14°C in Keswick in September, falling to 7°C at night.

How sunny is it in Keswick in September?

There are normally 4 hours of bright sunshine each day in Keswick in September - that's 28% of daylight hours.

Does it rain in Keswick in September?

There are usually 19 days with some rain in Keswick in September and the average monthly rainfall is 272mm.

Keswick September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:20 19:04
Monday, 15th September 2025 05:46 18:29
Tuesday, 30th September 2025 06:13 17:51

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