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Mississauga

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Mississauga Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Mississauga year round climate

  • Spring (March–May): Average 1.9–14.9°C, gradually warming climate, moderate rainfall with occasional showers. Common activities: Outdoor walks, cycling, visiting parks. Suggested clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): Average 19.8–22.5°C, warm and humid, occasional thunderstorms. August has the most rainfall. Common activities: Swimming, picnics, outdoor BBQs. Suggested clothing: Lightweight and breathable clothing, short sleeves, sandals.
  • Autumn (September–November): Average 11.9–20°C, gradually decreasing temperatures, comfortable weather, relatively high rainfall. Common activities: Leaf viewing, hiking, fruit picking. Suggested clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Winter (December–February): Average -3.4–0.7°C, cold and dry, occasional snowfall. Common activities: Skiing, ice skating, indoor activities. Suggested clothing: Heavy coat, warm clothing, hat, gloves, scarf.

Mississauga climatological average

Annual average temperature: approx. 10°C / Annual rainfall: approx. 423 mm / Summer humidity: 65%–75% / Rainiest month: August

Mississauga monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-3.4°C
33.5
February
-1.4°C
5.4
March
1.9°C
28.1
April
7.8°C
55.6
May
14.9°C
39.5
June
19.8°C
20.9
July
22.5°C
27.2
August
21.6°C
60.6
September
20°C
32.8
October
11.9°C
36.5
November
5.9°C
35.9
December
0.7°C
47.1

Mississauga weather for the next seven days

12/29
Monday
Light freezing rain
3.7°C/-7.5°C
12/30
Tuesday
Partly Cloudy
-2.3°C/-8.1°C
12/31
Wednesday
Light freezing rain
-1.4°C/-9.5°C
1/1
Thursday
Light freezing rain
-7.5°C/-10.9°C
1/2
Friday
Partly Cloudy
-8.8°C/-12.4°C
1/3
Saturday
Light freezing rain
-5.4°C/-11°C
1/4
Sunday
Sunny
-13.2°C/-17.1°C

Mississauga Frequently Asked Questions and Useful Information for Travel

What is the best time to visit?

The best time to visit is in spring and autumn, when the weather is warm and suitable for outdoor activities.

What attractions are worth seeing?

Celebration Square, ice skating rink and food trucks are must-visit attractions in Mississauga.