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Mississauga Weather in July
July in Mississauga averages 27°C (81°F) during the day and 17°C (63°F) at night. Quite a bit of rainfall is typical this month, with around 76 mm (3 in) on average. An umbrella is a good idea.
Rainfall in Mississauga in July
Historically, the month has about 9 days of rain, averaging 76 mm (3 in) in total. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Mississauga in July
The excellent temperature in Mississauga in July makes it a solid month to visit, with 27°C (81°F) during the day and 17°C (63°F) at night. July is typically considered a summer month. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Sunshine in Mississauga in July
There are approximately 295 hours of sunshine this month, resulting in mostly clear days.If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Mississauga.
Mississauga Temperature in July
Min Temperature
17°C (63°F)
Max Temperature
27°C (81°F)
Chance of Rain
28%
Precipitation
76 mm (3 in)
Rainy days
9 days
Humidity
53%
Sunshine
295 hours
Percentage Sunshine
63%
Mississauga Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mississauga - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mississauga typically stay consistent throughout July, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows typically ranging from 16°C (61°F) to 18°C (64°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather records for Mississauga in July
Browse day-by-day weather records for Mississauga spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mississauga historical weather extremes in July
Based on weather observations in Mississauga between 1976 and 2026, these are the recorded extremes during July.
- The hottest July day on record in Mississauga reached 38°C (100°F) (July 21, 2011).
- The lowest daytime temperature in July was 16°C (61°F), recorded on July 7, 1984.
- The coldest night in July in Mississauga was on July 6, 1983, with a minimum of 8°C (46°F).
Best Places in Canada in July
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in July →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mississauga in July
Warm weather calls for comfortable, breathable clothing in July. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Mississauga in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Mississauga 3-Day Forecast
More climate data for Mississauga
Temperature Rainfall Sunshine Humidity
See the full Mississauga climate overview or explore weather in Canada.
Popular in July
Where to go in July - average daytime high across popular destinations.
Niagara Falls
27°C (81°F) Montréal28°C (82°F) Ottawa27°C (81°F) Quebec City
26°C (79°F) Toronto26°C (79°F) Calgary24°C (75°F) Vancouver22°C (72°F) Whistler
19°C (66°F) Bucket list
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