Montreal weather in May 2025

Expect 19°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Montreal in May based on long-term weather averages. There is usually 13 days with some rainfall and 80 mm of average monthly rainfall in May.

  • 19°C maximum daytime temperature in May in Montreal19
    19°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in May in Montreal13
    13 days with some rainfall
  • 8°C minimum night-time temperature in May in Montreal8
    8°C min night temperature
  • 15 hours of daylight per day in May in Montreal15
    15 hours of daylight per day
  • No heat & humidity in May in Montreal0
    No heat & humidity
  • 80 mm monthly rainfall in May in Montreal80
    80 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Montreal6
    6 (High) UV index

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The May weather guide for Quebec (Montreal) 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 Canada

How hot is it in Montreal in May?

Daytime temperatures usually reach 19°C in Montreal in May, falling to 8°C at night.

How sunny is it in Montreal in May?

There are normally 7 hours of bright sunshine each day in Montreal in May - that's 50% of daylight hours.

Does it rain in Montreal in May?

There are usually 13 days with some rain in Montreal in May and the average monthly rainfall is 80mm.

Montreal May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:42 19:01
Friday, 16th May 2025 04:22 19:20
Saturday, 31st May 2025 04:09 19:35

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