Flagstaff weather in May 2025

Expect 20°C daytime maximum temperatures in the shade with on average 12 hours of sunshine per day in Flagstaff in May. Check more long-term weather averages for Flagstaff in May before you book your next holiday to Arizona in 2025/2026.

  • 20°C maximum daytime temperature in May in Flagstaff20
    20°C max day temperature
  • 12 hours of sunshine per day
  • 4 days with some rainfall in May in Flagstaff4
    4 days with some rainfall
  • -2°C minimum night-time temperature in May in Flagstaff-2
    -2°C min night temperature
  • 14 hours of daylight per day in May in Flagstaff14
    14 hours of daylight per day
  • No heat & humidity in May in Flagstaff0
    No heat & humidity
  • 19 mm monthly rainfall in May in Flagstaff19
    19 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in Flagstaff10
    10 (Very High) UV index

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The May weather guide for Arizona (Flagstaff) 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 Arizona

How hot is it in Flagstaff in May?

Daytime temperatures usually reach 20°C in Flagstaff in May, falling to -2°C at night.

How sunny is it in Flagstaff in May?

There are normally 12 hours of bright sunshine each day in Flagstaff in May - that's 84% of daylight hours.

Does it rain in Flagstaff in May?

There are usually 4 days with some rain in Flagstaff in May and the average monthly rainfall is 19mm.

Flagstaff May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:35 19:13
Friday, 16th May 2025 05:22 19:25
Saturday, 31st May 2025 05:14 19:36

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