Brattleboro weather in September 2025

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

  • 22°C maximum daytime temperature in September in Brattleboro22
    22°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in September in Brattleboro10
    10 days with some rainfall
  • 8°C minimum night-time temperature in September in Brattleboro8
    8°C min night temperature
  • 12 hours of daylight per day in September in Brattleboro12
    12 hours of daylight per day
  • No heat & humidity in September in Brattleboro0
    No heat & humidity
  • 86 mm monthly rainfall in September in Brattleboro86
    86 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Brattleboro6
    6 (High) UV index

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The September weather guide for Vermont (Brattleboro) 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 Brattleboro in September?

Daytime temperatures usually reach 22°C in Brattleboro in September, falling to 8°C at night.

How sunny is it in Brattleboro in September?

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

Does it rain in Brattleboro in September?

There are usually 10 days with some rain in Brattleboro in September and the average monthly rainfall is 86mm.

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

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

Brattleboro September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:15 18:24
Monday, 15th September 2025 05:30 18:00
Tuesday, 30th September 2025 05:47 17:33

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