Concord weather in September 2025

Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Concord in September. Check more long-term weather averages for Concord in September before you book your next holiday to New Hampshire in 2025/2026.

  • 22°C maximum daytime temperature in September in Concord22
    22°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Concord9
    9 days with some rainfall
  • 9°C minimum night-time temperature in September in Concord9
    9°C min night temperature
  • 12 hours of daylight per day in September in Concord12
    12 hours of daylight per day
  • No heat & humidity in September in Concord0
    No heat & humidity
  • 73 mm monthly rainfall in September in Concord73
    73 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Concord6
    6 (High) UV index

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The September weather guide for New Hampshire (Concord) 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 hot is it in Concord in September?

Daytime temperatures usually reach 22°C in Concord in September, falling to 9°C at night.

How sunny is it in Concord in September?

There are normally 7 hours of bright sunshine each day in Concord in September - that's 56% of daylight hours.

Does it rain in Concord in September?

There are usually 9 days with some rain in Concord in September and the average monthly rainfall is 73mm.

What is the chance of a hurricane in Concord in September?

On average less than 1 day in September in Concord is likely to be affected by the passage of one or more tropical storms.

Concord September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:11 18:21
Monday, 15th September 2025 05:26 17:56
Tuesday, 30th September 2025 05:43 17:29

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