Mississauga (ON) Weather & Climate: Best Time to Visit

The climate in Mississauga is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold 0°C (32°F) in the coolest month, January.

Nights vary from 17°C (63°F) in July to around -8°C (18°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Mississauga receives mid-range precipitation levels, with 941 mm (37 in) annually. Precipitation levels in Mississauga remain relatively steady throughout the year. April has the most rain, with 93 mm (3.7 in) over 11 days. In the driest month February, this drops slightly to 66 mm (2.6 in), making the city's climate fairly predictable. For more details, please visit our Mississauga Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Mississauga serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.8 hours of sunshine daily, and embrace the darker days in January, offering only 2.6 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Mississauga.

The city experiences its highest humidity in January, reaching 72%. In May, the humidity drops to its lowest level at 53%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year