Boone weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Boone in September. Check more long-term weather averages for Boone in September before you book your next holiday to North Carolina in 2025/2026.

  • 23°C maximum daytime temperature in September in Boone23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in September in Boone10
    10 days with some rainfall
  • 10°C minimum night-time temperature in September in Boone10
    10°C min night temperature
  • 12 hours of daylight per day in September in Boone12
    12 hours of daylight per day
  • No heat & humidity in September in Boone0
    No heat & humidity
  • 97 mm monthly rainfall in September in Boone97
    97 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Boone8
    8 (Very High) UV index

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The September weather guide for North Carolina (Boone) 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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More about the USA

How hot is it in Boone in September?

Daytime temperatures usually reach 23°C in Boone in September, falling to 10°C at night.

How sunny is it in Boone in September?

There are normally 7 hours of bright sunshine each day in Boone in September - that's 55% of daylight hours.

Does it rain in Boone in September?

There are usually 10 days with some rain in Boone in September and the average monthly rainfall is 97mm.

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

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

Boone September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:59 18:54
Monday, 15th September 2025 06:09 18:34
Tuesday, 30th September 2025 06:21 18:11

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