Ontario weather in July 2025

Expect daytime maximum temperatures of 27°C in Ontario, Canada in July based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 70 mm of rainfall in the month.

  • 27°C maximum daytime temperature in July in Ontario (Toronto)27
    27°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in July in Ontario (Toronto)9
    9 days with some rainfall
  • 16°C minimum night-time temperature in July in Ontario (Toronto)16
    16°C min night temperature
  • 15 hours of daylight per day in July in Ontario (Toronto)15
    15 hours of daylight per day
  • Low heat & humidity in July in Ontario (Toronto)L
    Low heat & humidity
  • 70 mm monthly rainfall in July in Ontario (Toronto)70
    70 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Ontario (Toronto)8
    8 (Very High) UV index
  • 19°C sea temperature in July in Ontario (Toronto)19
    19°C sea temperature

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The July 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.

Top Ontario destinations

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

All Ontario destinations

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

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More about Ontario

How hot is it in Ontario in July?

Daytime temperatures usually reach 27°C in Toronto, Ontario in July with low heat and humidity, falling to 16°C at night.

How sunny is it in Ontario in July?

There are normally 9 hours of bright sunshine each day in Toronto, Ontario in July - that's 60% of daylight hours.

How warm is the sea around Ontario in July?

The average sea temperature around Toronto, Ontario in July is 19°C.

Does it rain in Ontario in July?

There are usually 9 days with some rain in Toronto, Ontario in July and the average monthly rainfall is 70mm.

Ontario July sunrise & sunset times

Browse the sunrise and sunset times for Ontario in July 2025. Select a month to view Ontario sunrise and sunset times for the next 12 months. The Ontario sunrise and sunset times shown below are for Toronto.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:40 20:03
Wednesday, 16th July 2025 04:51 19:56
Thursday, 31st July 2025 05:06 19:41

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