World Resorts Canada Toronto Weather

Toronto sea water temperature

Current sea water temperature:
+49.3°F
Minimum sea water temperature in June: 69.8°F
Maximum sea water temperature in June: 32.0°F
Average sea water temperature in June: 54.7°F

Sea water temperature for the last 10 days:

June 26 49.3°F June 21 46.2°F
June 25 48.6°F June 20 47.8°F
June 24 48.4°F June 19 49.1°F
June 23 47.7°F June 18 49.5°F
June 22 46.4°F June 17 51.1°F

When is the warmest sea in Toronto?

Based on the data about daily sea water temperature for the last three years the warmest sea in Toronto was noticed in August, July and September.

Monthly Sea Temperatures in Toronto, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 73.2°F. The highest and lowest sea temperatures during the month were 77.5°F and 69.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 68.5°F. The highest and lowest sea temperatures during the month were 75.2°F and 61.0°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 69.3°F and 58.5°F.

Best time for vacation in Toronto

Sunniest months:
July 17 days
August 17 days
June 15 days
Warmest months:
July 79.6 °F
August 78.3 °F
June 72.2 °F
Warmest sea temp:
August 67.4 °F
July 64.9 °F
September 64.7 °F
Coldest months:
January 27.2 °F
February 28.3 °F
December 34.6 °F
Rainiest months:
June 4 days
October 4 days
April 4 days
Windiest months:
January 11.3 mph
February 11.0 mph
November 10.8 mph

Toronto on a weather map

Toronto
+63°F
S 6 mph
Feels like: +63°F
Precip.: 9%
Places in Canada:
Name
°F
+48°F
+59°F
+57°F
+66°F
+55°F
+66°F
+59°F
+61°F
+63°F
+63°F
+57°F
+52°F
+63°F
+63°F
24 Hours Forecast
Toronto
Local time: 01:03
June 27, saturday
0300
61°F
S
6 mph
0600
61°F
SE
4 mph
0900
66°F
S
4 mph
1200
70°F
W
2 mph
1500
73°F
N
5 mph
1800
73°F
NW
2 mph
2100
68°F
NW
2 mph
June 28, sunday
0000
64°F
S
3 mph
Units of measurement: °C / °F