Buffalo weather in September 2026

Expect daytime maximum temperatures of 70°F in Buffalo, New York in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 3.7 inches of rainfall in the month.

  • 70°F maximum daytime temperature in September in Buffalo70
    70°F max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in September in Buffalo11
    11 days with some rainfall
  • 54°F minimum night-time temperature in September in Buffalo54
    54°F min night temperature
  • 12 hours of daylight per day in September in Buffalo12
    12 hours of daylight per day
  • No heat & humidity in September in Buffalo0
    No heat & humidity
  • 3.7 inches monthly rainfall in September in Buffalo3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Buffalo6
    6 (High) UV index
  • 66°F sea temperature in September in Buffalo66
    66°F sea temperature

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The September weather guide for New York (Buffalo) 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 New York

How hot is it in Buffalo in September?

Daytime temperatures usually reach 75°F in Buffalo in September, falling to 61°F at night.

How sunny is it in Buffalo in September?

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

How warm is the sea around Buffalo in September?

The average sea temperature around Buffalo in September is 70°F.

Does it rain in Buffalo in September?

There are usually 8 days with some rain in Buffalo in September and the average monthly rainfall is 3.6 inches.

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

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

Buffalo September sunrise & sunset times

Browse the sunrise and sunset times for Buffalo in September 2026. Select a month to view Buffalo sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 05:40 18:50
Tuesday, 15th September 2026 05:55 18:25
Wednesday, 30th September 2026 06:12 17:58

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