Truro weather in September 2025

Expect daytime maximum temperatures of 17°C in Truro in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 86 mm of rainfall in the month.

  • 17°C maximum daytime temperature in September in Truro17
    17°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in September in Truro15
    15 days with some rainfall
  • 11°C minimum night-time temperature in September in Truro11
    11°C min night temperature
  • 13 hours of daylight per day in September in Truro13
    13 hours of daylight per day
  • No heat & humidity in September in Truro0
    No heat & humidity
  • 86 mm monthly rainfall in September in Truro86
    86 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Truro4
    4 (Moderate) UV index

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The September weather guide for England (Truro) 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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How warm is it in Truro in September?

Daytime temperatures usually reach 17°C in Truro in September, falling to 11°C at night.

How sunny is it in Truro in September?

There are normally 5 hours of bright sunshine each day in Truro in September - that's 40% of daylight hours.

Does it rain in Truro in September?

There are usually 15 days with some rain in Truro in September and the average monthly rainfall is 86mm.

Truro September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:35 19:04
Monday, 15th September 2025 05:56 18:34
Tuesday, 30th September 2025 06:19 18:00

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