Phoenix weather in May 2026

Expect daytime maximum temperatures of 34°C in Phoenix, Arizona in May and high heat and humidity based on long-term weather averages. There are 13 hours of sunshine per day on average.

  • 34°C maximum daytime temperature in May in Phoenix34
    34°C max day temperature
  • 13 hours of sunshine per day
  • 1 day with some rainfall in May in Phoenix1
    1 day with some rainfall
  • 16°C minimum night-time temperature in May in Phoenix16
    16°C min night temperature
  • 14 hours of daylight per day in May in Phoenix14
    14 hours of daylight per day
  • High heat & humidity in May in PhoenixH
    High heat & humidity
  • 4 mm monthly rainfall in May in Phoenix4
    4 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in Phoenix10
    10 (Very High) UV index

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The May weather guide for Arizona (Phoenix) 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 Phoenix in May?

Daytime temperatures usually reach 34°C in Phoenix in May with high heat and humidity, falling to 16°C at night.

How sunny is it in Phoenix in May?

There are normally 13 hours of bright sunshine each day in Phoenix in May - that's 93% of daylight hours.

Does it ever rain in Phoenix in May?

There is usually 1 day with some rain in Phoenix in May and the average monthly rainfall is 4mm.

Phoenix May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:40 19:12
Saturday, 16th May 2026 05:27 19:23
Sunday, 31st May 2026 05:20 19:33

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