Mississauga

What is the climate like in Mississauga?

The best time to visit Mississauga is typically June – September, with trip comfort peaking in September (7.4/10). Mississauga is warmest in July, when daily highs average 79°F (26°C), and coolest in January, when lows fall to about 22°F (-6°C). The wettest month is typically April and the driest is September; the year sees roughly 37 in (939 mm) of precipitation.

• Best time to visitJune – September — comfort peaks in September (7.4/10)
• Warmest monthJuly — average high 79°F (26°C)
• Coolest monthJanuary — average low 22°F (-6°C)
• Wettest monthApril (3.9 in (100 mm))
• Driest monthSeptember (2.1 in (54 mm))
• Annual precipitation37 in (939 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromOakville Twn, 7 km away (2007-2023)