Buffalo weather in September 2026

Expect daytime maximum temperatures of 21°C 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 95 mm of rainfall in the month.

• 21
  21°C max day temperature
• 7
  7 hours of sunshine per day
• 11
  11 days with some rainfall
• 12
  12°C min night temperature
• 12
  12 hours of daylight per day
• 0
  No heat & humidity
• 95
  95 mm of monthly rainfall
• 6
  6 (High) UV index
• 19
  19°C 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 / mm)  |  Imperial (°F / inches)

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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.

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