Laon weather in September 2025

Expect 20°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Laon in September. Check more long-term weather averages for Laon in September before you book your next holiday to France in 2025/2026.

  • 20°C maximum daytime temperature in September in Laon20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in September in Laon14
    14 days with some rainfall
  • 10°C minimum night-time temperature in September in Laon10
    10°C min night temperature
  • 13 hours of daylight per day in September in Laon13
    13 hours of daylight per day
  • No heat & humidity in September in Laon0
    No heat & humidity
  • 55 mm monthly rainfall in September in Laon55
    55 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Laon4
    4 (Moderate) UV index

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The September weather guide for France (Laon) 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 France

How hot is it in Laon in September?

Daytime temperatures usually reach 20°C in Laon in September, falling to 10°C at night.

How sunny is it in Laon in September?

There are normally 6 hours of bright sunshine each day in Laon in September - that's 44% of daylight hours.

Does it rain in Laon in September?

There are usually 14 days with some rain in Laon in September and the average monthly rainfall is 55mm.

Laon September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:01 19:29
Monday, 15th September 2025 06:22 18:59
Tuesday, 30th September 2025 06:44 18:26

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