Manchester weather in September 2025

Expect 73°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Manchester in September. Check more long-term weather averages for Manchester in September before you book your next holiday to New Hampshire in 2025/2026.

  • 73°F maximum daytime temperature in September in Manchester73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Manchester9
    9 days with some rainfall
  • 48°F minimum night-time temperature in September in Manchester48
    48°F min night temperature
  • 12 hours of daylight per day in September in Manchester12
    12 hours of daylight per day
  • No heat & humidity in September in Manchester0
    No heat & humidity
  • 3.2 inches monthly rainfall in September in Manchester3.2
    3.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Manchester6
    6 (High) UV index

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The September weather guide for New Hampshire (Manchester) 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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More about the USA

How hot is it in Manchester in September?

Daytime temperatures usually reach 73°F in Manchester in September, falling to 48°F at night.

How sunny is it in Manchester in September?

There are normally 7 hours of bright sunshine each day in Manchester in September - that's 59% of daylight hours.

Does it rain in Manchester in September?

There are usually 9 days with some rain in Manchester in September and the average monthly rainfall is 3.2 inches.

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

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

Manchester September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:11 18:20
Monday, 15th September 2025 05:26 17:55
Tuesday, 30th September 2025 05:42 17:28

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