Guildford weather in September 2025

Expect daytime maximum temperatures of 66°F in Guildford, 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 2.5 inches of rainfall in the month.

  • 66°F maximum daytime temperature in September in Guildford66
    66°F max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Guildford12
    12 days with some rainfall
  • 48°F minimum night-time temperature in September in Guildford48
    48°F min night temperature
  • 13 hours of daylight per day in September in Guildford13
    13 hours of daylight per day
  • No heat & humidity in September in Guildford0
    No heat & humidity
  • 2.5 inches monthly rainfall in September in Guildford2.5
    2.5 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Guildford4
    4 (Moderate) UV index

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The September weather guide for England (Guildford) 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)  |  Imperial (°F)

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How hot is it in Guildford in September?

Daytime temperatures usually reach 66°F in Guildford in September, falling to 48°F at night.

How sunny is it in Guildford in September?

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

Does it rain in Guildford in September?

There are usually 12 days with some rain in Guildford in September and the average monthly rainfall is 2.5 inches.

Guildford September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:16 18:48
Monday, 15th September 2025 05:38 18:16
Tuesday, 30th September 2025 06:01 17:42

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