Annual mean 9°C · wettest around February · prevailing wind SW
Warmest
25.3 °C
Coldest
-2.8 °C
Wettest
25%
Windiest
4.9 m/s
Prevailing
SW
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Mississauga over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -4°C. Mississauga has no sharply defined rainy season: the chance of rain on a given day runs from 10% in September, the driest month, to 19% in February, the wettest. Winds in Mississauga are highest in February, averaging 4.0 m/s (14 km/h), and lightest in July, at 2.6 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in Mississauga come in July, when the sky is typically 38% covered; December is the cloudiest month, at 68%.
Month by month Mississauga climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-2°C
-4°C
-8°C
18%
67%
3.9 m/s
0
0
1
February
-1°C
-4°C
-7°C
19%
62%
4.0 m/s
0
0
3
March
3°C
-1°C
-3°C
15%
54%
4.0 m/s
1
0
9
April
8°C
4°C
3°C
18%
52%
3.8 m/s
5
0
29
May
16°C
10°C
13°C
13%
46%
3.1 m/s
35
7
63
June
22°C
16°C
20°C
13%
41%
3.0 m/s
68
21
63
July
25°C
19°C
25°C
10%
38%
2.6 m/s
70
49
34
August
25°C
18°C
25°C
10%
38%
2.6 m/s
71
48
37
September
21°C
15°C
20°C
10%
40%
2.7 m/s
67
22
65
October
14°C
9°C
11°C
15%
53%
3.2 m/s
29
2
59
November
6°C
3°C
1°C
16%
60%
3.5 m/s
4
0
22
December
1°C
-1°C
-5°C
19%
68%
3.7 m/s
0
0
3
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Mississauga weather by season
Year round, Mississauga has days of about -2°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -4°C to 19°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around February and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Mississauga weather in winterDecember to February
High -1°CLow -3°CRain 19%
Winter in Mississauga has typical daily highs of about -1°C and lows of about -3°C, with a 19% chance of rain on a given day.
Mississauga weather in springMarch to May
High 9°CLow 4°CRain 16%
Spring in Mississauga has typical daily highs of about 9°C and lows of about 4°C, with a 16% chance of rain on a given day.
Mississauga weather in summerJune to August
High 24°CLow 18°CRain 11%
Summer in Mississauga has typical daily highs of about 24°C and lows of about 18°C, with a 11% chance of rain on a given day.
Mississauga weather in autumnSeptember to November
High 14°CLow 9°CRain 14%
Autumn in Mississauga has typical daily highs of about 14°C and lows of about 9°C, with a 14% chance of rain on a given day.
When is the rainy season in Mississauga?
Mississauga has no sharply defined rainy season: the chance of rain on a given day runs from 10% in September, the driest month, to 19% in February, the wettest.
What time of year is Mississauga windiest?
Winds in Mississauga are highest in February, averaging 4.0 m/s (14 km/h), and lightest in July, at 2.6 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in Mississauga year round?
The average temperature in Mississauga over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -4°C.