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

Mississauga Sea Water Temperature

Current Sea Water Temperature:
+70.2°F
Maximum Sea Water Temperature in September: 77.6°F
Minimum Sea Water Temperature in September: 60.4°F
Average water temperature in September: 69.0°F

Sea Water Temperature for the Last 10 Days:

September 08 70.2°F September 03 68.8°F
September 07 70.0°F September 02 68.2°F
September 06 68.2°F September 01 67.2°F
September 05 67.8°F August 31 66.2°F
September 04 67.4°F August 30 65.0°F

When is the Warmest Sea for Mississauga?

According to our data for the last three years for Mississauga the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Mississauga was 70.5°F. The maximum and minimum values were 62.8°F and 74.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Mississauga was 66.8°F. The maximum and minimum values were 58.2°F and 76.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Mississauga was 67.3°F. The maximum and minimum values were 60.4°F and 72.0°F respectively.

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

Mississauga on the Weather Map

24 Hours Weather Forecast
Mississauga
Local time: 16:57
08 sep, tuesday
1800 76°F
NW
5 mph
2100 68°F
NW
4 mph
09 sep, wednesday
0000 66°F
NE
2 mph
0300 72°F
NE
3 mph
0600 70°F
W
2 mph
0900 68°F
N
2 mph
1200 74°F
NE
7 mph
1500 72°F
E
11 mph