Luton weather in September 2025

Expect daytime maximum temperatures of 18°C in Luton, England in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 54 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in Luton18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Luton12
    12 days with some rainfall
  • 9°C minimum night-time temperature in September in Luton9
    9°C min night temperature
  • 13 hours of daylight per day in September in Luton13
    13 hours of daylight per day
  • No heat & humidity in September in Luton0
    No heat & humidity
  • 54 mm monthly rainfall in September in Luton54
    54 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Luton4
    4 (Moderate) UV index

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The September weather guide for England (Luton) 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 hot is it in Luton in September?

Daytime temperatures usually reach 18°C in Luton in September, falling to 9°C at night.

How sunny is it in Luton in September?

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

Does it rain in Luton in September?

There are usually 12 days with some rain in Luton in September and the average monthly rainfall is 54mm.

Luton September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:14 18:48
Monday, 15th September 2025 05:37 18:16
Tuesday, 30th September 2025 06:01 17:41

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