Measurements:
°C
°F
Mississauga
30°F
E 17 mph
Feels like: 20°F
Precip: 0%
World Resorts Canada Mississauga Weather

Mississauga Sea Water Temperature

Current Sea Water Temperature:
+36.8°F
Maximum Sea Water Temperature in January: 39.0°F
Minimum Sea Water Temperature in January: 33.2°F
Average water temperature in January: 36.5°F

Sea Water Temperature for the Last 10 Days:

January 10 36.8°F January 05 36.0°F
January 09 35.8°F January 04 36.4°F
January 08 35.8°F January 03 36.2°F
January 07 35.8°F January 02 36.4°F
January 06 36.0°F January 01 37.0°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Mississauga was 76.0°F. The maximum and minimum values were 71.6°F and 80.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Mississauga was 70.8°F. The maximum and minimum values were 63.8°F and 77.8°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 14 days
July 13 days
The most warm months:
July 81.9 °F
August 80.2 °F
June 75.3 °F
Warmest sea temperature:
August 73.0 °F
July 69.7 °F
September 69.0 °F
The most cold months:
January 25.9 °F
February 26.4 °F
December 32.6 °F
The most rainy months:
April 2 days
July 2 days
June 2 days
The most windy months:
February 10 mph
November 9 mph
March 9 mph

Mississauga on the Weather Map

Canada Resorts:
NAME
Halifax +30
Kingston +36
Montreal +30
Niagara Falls +32
Ottawa +28
Prince Edward Island +26
Quebec +18
Saint John +30
St. John's +30
Sydney +26
Toronto +30
Vancouver +44
Victoria +44
Winnipeg -12
Yellowknife -12
24 Hours Weather Forecast
Mississauga
Local time: 02:16
11 jan, sunday
0300 30°F
E
17 mph
0600 28°F
E
17 mph
0900 26°F
E
16 mph
1200 26°F
E
16 mph
1500 28°F
SE
16 mph
1800 26°F
SE
19 mph
2100 24°F
SE
17 mph
12 jan, monday
0000 22°F
SE
13 mph