Sudbury weather in May 2026

Expect daytime maximum temperatures of 17°C in Sudbury, Ontario in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 63 mm of rainfall in the month.

  • 17°C maximum daytime temperature in May in Sudbury17
    17°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in May in Sudbury10
    10 days with some rainfall
  • 5°C minimum night-time temperature in May in Sudbury5
    5°C min night temperature
  • 15 hours of daylight per day in May in Sudbury15
    15 hours of daylight per day
  • No heat & humidity in May in Sudbury0
    No heat & humidity
  • 63 mm monthly rainfall in May in Sudbury63
    63 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Sudbury6
    6 (High) UV index

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The May weather guide for Ontario (Sudbury) 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 Ontario

How hot is it in Sudbury in May?

Daytime temperatures usually reach 18°C in Sudbury in May, falling to 8°C at night.

How sunny is it in Sudbury in May?

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

Is the sea cold around Sudbury in May?

The average sea temperature around Sudbury in May is 7°C.

Does it rain in Sudbury in May?

There are usually 11 days with some rain in Sudbury in May and the average monthly rainfall is 69mm.

Sudbury May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:10 19:33
Saturday, 16th May 2026 04:49 19:53
Sunday, 31st May 2026 04:35 20:08

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