Measurements:
°C
°F
CURRENT WEATHER
17:32
Mississauga
76°F
NW 5 mph
Feels like: 80°F
Precip: 17%
World Resorts Canada Mississauga Weather

7 Day Weather Forecast

09.08
tue
DAY
76°F
NW 3 mph
precip
17%
NIGHT
66°F
NE 2 mph
precip
29%
09.09
wed
DAY
74°F
NE 7 mph
precip
30%
NIGHT
70°F
E 11 mph
precip
32%
09.10
thu
DAY
70°F
SE 13 mph
precip
11%
NIGHT
58°F
SE 6 mph
precip
5%
09.11
fri
DAY
70°F
E 5 mph
precip
1%
NIGHT
60°F
NW 2 mph
precip
11%
09.12
sat
DAY
72°F
N 5 mph
precip
2%
NIGHT
68°F
NE 4 mph
precip
19%
09.13
sun
DAY
80°F
NE 4 mph
precip
17%
NIGHT
64°F
NE 7 mph
precip
46%
09.14
mon
DAY
70°F
SW 5 mph
precip
12%
NIGHT
66°F
W 6 mph
precip
14%

Mississauga Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Mississauga was 18.7°F. The maximum and minimum values were 15.2°F and 21.0°F respectively.

Mississauga on the Weather Map

Best Time to Visit Mississauga
The most sunny months:
September 15 days
August 15 days
July 15 days
The most warm months:
July 82.5 °F
August 80.2 °F
June 75.7 °F
Warmest sea temperature:
August 72.6 °F
July 69.3 °F
September 69.0 °F
The most cold months:
January 25.1 °F
February 26.1 °F
December 32.6 °F
The most rainy months:
April 2 days
July 2 days
June 2 days
The most windy months:
November 9 mph
December 9 mph
March 9 mph
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