Calgary weather in May 2026

Expect daytime maximum temperatures of 16°C in Calgary, Alberta in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 55 mm of rainfall in the month.

  • 16°C maximum daytime temperature in May in Calgary16
    16°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in May in Calgary10
    10 days with some rainfall
  • 3°C minimum night-time temperature in May in Calgary3
    3°C min night temperature
  • 16 hours of daylight per day in May in Calgary16
    16 hours of daylight per day
  • No heat & humidity in May in Calgary0
    No heat & humidity
  • 55 mm monthly rainfall in May in Calgary55
    55 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Calgary6
    6 (High) UV index

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The May weather guide for Alberta (Calgary) 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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How warm is it in Calgary in May?

Daytime temperatures usually reach 16°C in Calgary in May, falling to 3°C at night.

How sunny is it in Calgary in May?

There are normally 8 hours of bright sunshine each day in Calgary in May - that's 52% of daylight hours.

Does it rain in Calgary in May?

There are usually 10 days with some rain in Calgary in May and the average monthly rainfall is 55mm.

Calgary May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:09 19:59
Saturday, 16th May 2026 04:45 20:22
Sunday, 31st May 2026 04:28 20:41

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