Measurements:
°C
°F
Mississauga
54°F
SE 4 mph
Feels like: 52°F
Precip: 6%
World Resorts Canada Mississauga Weather

Mississauga Sea Water Temperature

Current Sea Water Temperature:
+45.6°F
Maximum Sea Water Temperature in June: 71.2°F
Minimum Sea Water Temperature in June: 45.6°F
Average water temperature in June: 57.3°F

Sea Water Temperature for the Last 10 Days:

June 21 45.6°F June 16 49.4°F
June 20 47.8°F June 15 55.0°F
June 19 49.0°F June 14 56.0°F
June 18 50.2°F June 13 56.8°F
June 17 49.4°F June 12 54.8°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 25.1 °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

Canada Resorts:
NAME
Bonavista +46
Halifax +62
Kingston +56
Montreal +60
Ottawa +60
Prince Edward Island +54
Quebec +60
Saint John +64
Sydney +52
Thunder Bay +52
Toronto +54
Vancouver +58
Victoria +54
Winnipeg +50
Yellowknife +52
24 Hours Weather Forecast
Mississauga
Local time: 07:14
21 jun, sunday
0900 64°F
SE
3 mph
1200 74°F
E
2 mph
1500 80°F
NE
5 mph
1800 72°F
SE
7 mph
2100 64°F
S
5 mph
22 jun, monday
0000 60°F
S
4 mph
0300 58°F
S
4 mph
0600 58°F
SW
3 mph