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
11/26
Wednesday
Overcast
10.7°C/2°C
11/27
Thursday
Overcast
2.4°C/0.3°C
11/28
Friday
Sunny
3°C/-1.8°C
11/29
Saturday
Partly Cloudy
0.7°C/-2.1°C
11/30
Sunday
Heavy snow
3.2°C/-0.5°C
12/1
Monday
Partly Cloudy
-1.3°C/-3.4°C
12/2
Tuesday
Sunny
-4°C/-6.6°C
KKday App
Your Best Travel Buddy
Use the code APP5OFF to enjoy an exclusive in-app deal of 5% off (cap at USD$3) on your 1st orderScan here to download the app