Buffalo weather in May 2026

Expect daytime maximum temperatures of 64°F in Buffalo, New York in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 3.0 inches of rainfall in the month.

  • 64°F maximum daytime temperature in May in Buffalo64
    64°F max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in May in Buffalo12
    12 days with some rainfall
  • 45°F minimum night-time temperature in May in Buffalo45
    45°F min night temperature
  • 15 hours of daylight per day in May in Buffalo15
    15 hours of daylight per day
  • No heat & humidity in May in Buffalo0
    No heat & humidity
  • 3.0 inches monthly rainfall in May in Buffalo3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 7 (High) in May in Buffalo7
    7 (High) UV index
  • 46°F sea temperature in May in Buffalo46
    46°F sea temperature

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The May 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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How hot is it in Buffalo in May?

Daytime temperatures usually reach 70°F in Buffalo in May, falling to 54°F at night.

How sunny is it in Buffalo in May?

There are normally 8 hours of bright sunshine each day in Buffalo in May - that's 57% of daylight hours.

How warm is the sea around Buffalo in May?

The average sea temperature around Buffalo in May is 54°F.

Does it rain in Buffalo in May?

There are usually 11 days with some rain in Buffalo in May and the average monthly rainfall is 4.1 inches.

Buffalo May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:09 19:16
Saturday, 16th May 2026 04:51 19:33
Sunday, 31st May 2026 04:40 19:47

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