Canada weather in May 2025

Expect daytime maximum temperatures of 18°C in Canada in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 73 mm of rainfall in the month.

  • 18°C maximum daytime temperature in May in Canada (Ottawa)18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in May in Canada (Ottawa)12
    12 days with some rainfall
  • 7°C minimum night-time temperature in May in Canada (Ottawa)7
    7°C min night temperature
  • 15 hours of daylight per day in May in Canada (Ottawa)15
    15 hours of daylight per day
  • No heat & humidity in May in Canada (Ottawa)0
    No heat & humidity
  • 73 mm monthly rainfall in May in Canada (Ottawa)73
    73 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Canada (Ottawa)6
    6 (High) UV index

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The May weather guide for Canada (Ottawa) 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.

Top Canada destinations

Below are average maximum temperatures at popular countries, regions and places in Canada in May. Select a holiday destination to see more weather parameters.

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Canada

How hot is it in Canada in May?

Daytime temperatures usually reach 18°C in Ottawa, Canada in May, falling to 7°C at night.

How sunny is it in Canada in May?

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

Does it rain in Canada in May?

There are usually 12 days with some rain in Ottawa, Canada in May and the average monthly rainfall is 73mm.

Canada May sunrise & sunset times

Browse the sunrise and sunset times for Canada in May 2025. Select a month to view Canada sunrise and sunset times for the next 12 months. The Canada sunrise and sunset times shown below are for Ottawa.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:51 19:10
Friday, 16th May 2025 04:31 19:28
Saturday, 31st May 2025 04:18 19:43

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