World Resorts Canada Toronto Weather

Toronto sea water temperature

Current sea water temperature:
+39.9°F
Minimum sea water temperature in April: 44.1°F
Maximum sea water temperature in April: 32.0°F
Average sea water temperature in April: 38.4°F

Sea water temperature for the last 10 days:

April 27 39.9°F April 22 36.9°F
April 26 39.4°F April 21 38.5°F
April 25 39.6°F April 20 39.6°F
April 24 39.7°F April 19 37.9°F
April 23 38.7°F April 18 37.0°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:
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
September 15 days
Warmest months:
July 79.6 °F
August 78.3 °F
June 72.1 °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
+59°F
W 9 mph
Feels like: +57°F
Precip.: 0%
Places in Canada:
Name
°F
+52°F
+55°F
+39°F
+48°F
+63°F
+61°F
+66°F
+66°F
+59°F
+43°F
+46°F
+59°F
+50°F
24 Hours Forecast
Toronto
Local time: 11:28
April 27, monday
1200
59°F
W
9 mph
1500
64°F
W
11 mph
1800
57°F
W
13 mph
2100
50°F
W
11 mph
April 28, tuesday
0000
50°F
NW
7 mph
0300
48°F
NW
7 mph
0600
50°F
NW
8 mph
0900
48°F
N
12 mph
Units of measurement: °C / °F