World Resorts Canada Toronto Weather

Toronto sea water temperature

Current sea water temperature:
+71.4°F
Minimum sea water temperature in July: 76.3°F
Maximum sea water temperature in July: 32.0°F
Average sea water temperature in July: 64.9°F

Sea water temperature for the last 10 days:

July 17 71.4°F July 12 70.9°F
July 16 72.5°F July 11 72.0°F
July 15 73.2°F July 10 70.3°F
July 14 72.0°F July 9 69.1°F
July 13 70.9°F July 8 66.0°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 66.8°F. The highest and lowest sea temperatures during the month were 73.2°F and 57.2°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 72.3 °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
+64°F
S 2 mph
Feels like: +64°F
Precip.: 11%
Places in Canada:
Name
°F
+59°F
+57°F
+66°F
+61°F
+57°F
+54°F
+55°F
+55°F
+55°F
+63°F
+63°F
+61°F
+64°F
24 Hours Forecast
Toronto
Local time: 07:26
July 17, friday
0900
72°F
W
2 mph
1200
81°F
NW
2 mph
1500
84°F
W
2 mph
1800
82°F
N
2 mph
2100
77°F
W
1 mph
July 18, saturday
0000
73°F
SW
3 mph
0300
72°F
NE
2 mph
0600
70°F
NE
4 mph
Units of measurement: °C / °F