The highest day temperature in July 2026 was 108°F. The lowest night temperature was 54°F. The average values for day and night temperatures during July were 85.7°F и 66.9°F respectivly.

The average sea surface temperature in July 2026 for Mississauga was 67.0°F. The maximum and minimum values were 58.2°F and 76.2°F respectively.

Most of the days in July are sunny but you can also expect cloudy and gloomy days.

Precipitation total in July for Mississauga is 1.1 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 6.6 mph. It makes July the most windless month of the year for Mississauga.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Mississauga in July is 10.1 hours.