Dereham weather in September 2025

Expect 18°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Dereham in September. Check more long-term weather averages for Dereham in September before you book your next holiday to England in 2025/2026.

  • 18°C maximum daytime temperature in September in Dereham18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Dereham12
    12 days with some rainfall
  • 9°C minimum night-time temperature in September in Dereham9
    9°C min night temperature
  • 13 hours of daylight per day in September in Dereham13
    13 hours of daylight per day
  • No heat & humidity in September in Dereham0
    No heat & humidity
  • 54 mm monthly rainfall in September in Dereham54
    54 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Dereham4
    4 (Moderate) UV index

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The September weather guide for England (Dereham) 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 Dereham in September?

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

How sunny is it in Dereham in September?

There are normally 5 hours of bright sunshine each day in Dereham in September - that's 38% of daylight hours.

Does it rain in Dereham in September?

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

Dereham September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:07 18:44
Monday, 15th September 2025 05:31 18:11
Tuesday, 30th September 2025 05:56 17:35

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