Toronto weather in May 2025

Expect daytime maximum temperatures of 64°F in Toronto, Ontario in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 2.7 inches of rainfall in the month.

  • 64°F maximum daytime temperature in May in Toronto64
    64°F max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in May in Toronto11
    11 days with some rainfall
  • 46°F minimum night-time temperature in May in Toronto46
    46°F min night temperature
  • 15 hours of daylight per day in May in Toronto15
    15 hours of daylight per day
  • No heat & humidity in May in Toronto0
    No heat & humidity
  • 2.7 inches monthly rainfall in May in Toronto2.7
    2.7 inches of monthly rainfall
  • UV (maximum) index 7 (High) in May in Toronto7
    7 (High) UV index
  • 45°F sea temperature in May in Toronto45
    45°F sea temperature

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The May weather guide for Ontario (Toronto) 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)  |  Imperial (°F)

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More about Ontario

How hot is it in Toronto in May?

Daytime temperatures usually reach 64°F in Toronto in May, falling to 46°F at night.

How sunny is it in Toronto in May?

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

How warm is the sea around Toronto in May?

The average sea temperature around Toronto in May is 45°F.

Does it rain in Toronto in May?

There are usually 11 days with some rain in Toronto in May and the average monthly rainfall is 2.7 inches.

Toronto May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:09 19:21
Friday, 16th May 2025 04:51 19:38
Saturday, 31st May 2025 04:39 19:52

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