What Is The Temperature In Mississauga

what is the temperature in mississauga


Mississauga, a dynamic and thriving city located in the southern part of Ontario, is known for its distinctive climate that is influenced by its location near the Great Lakes and its urban heat island effect. The city presents a moderate, four-season continental climate. This article will provide a comprehensive overview of the temperate conditions in Mississauga.

Annual Overview of Temperature in Mississauga

The yearly climate in Mississauga can be divided into four distinct seasons: winter, spring, summer, and fall. Each season presents its unique weather patterns and temperature ranges.

Winter Temperature

Winter in Mississauga starts from late December and extends till early March. The average high temperature during this season ranges from -1°C (30°F) to -7°C (19°F), whereas the average low temperature can go as down to -10°C (14°F) or even lower. Extreme winter conditions accompanied by snowfalls can result in colder weather.

Spring Temperature

Following the chilly winter, spring is a refreshing season for the people of Mississauga. Lasting from March to June, the spring season sees temperatures gradually increase from 4°C (39°F) to a pleasant 19°C (66°F).

Summer Temperature

Summer in Mississauga, from June to September, is generally warm and humid with temperatures ranging from 19°C (66°F) to 27°C (81°F). The hottest month typically is July due to its proximity to the peak of summer, with temperatures often exceeding 30°C (86°F).

Fall Temperature

Fall, similar to spring, offers mild and comfortable temperatures ranging from 3°C (37°F) to 18°C (64°F). It usually lasts from September to December. During this season, the city is enveloped in vibrant autumn colors, providing a picturesque setting.

Temperature Variations: Urban Heat Island Effect

Like many other urban areas, Mississauga also exhibits the Urban Heat Island (UHI) effect. Due to the concentration of buildings and roads absorbing and re-radiating heat, the city experiences higher temperatures, especially during the summer, as compared to its surrounding suburban and rural areas.

Influence of Lake Ontario

Proximity to Lake Ontario has a significant influence on the temperature in Mississauga. The lake acts as a "temperature buffer", cooling the city during the summer and moderating the cold in winter. As a result, Lake Ontario plays a vital role in maintaining the overall climate balance in Mississauga.

Weather Warnings and Preparedness

Due to the harsh winters and hot, humid summers, Mississauga residents should stay prepared with appropriate clothing and weather-related information updates. The city's authorities provide weather warnings and updates to keep citizens informed and safe.


Understanding the temperature in Mississauga is critical for residents, tourists, and anyone seeking to visit or relocate. Although it can have extremes, the city presents a diverse mix of clear, vibrant seasons that are enjoyable and picturesque, guaranteeing a unique experience in every season. The range of temperatures also means that there are activities suited for every time of the year, adding to the charm of this dynamic Canadian city.