World Resorts Canada Toronto Weather

Toronto sea water temperature

Current sea water temperature:
+38.5°F
Minimum sea water temperature in January: 41.4°F
Maximum sea water temperature in January: 32.0°F
Average sea water temperature in January: 37.6°F

Sea water temperature for the last 10 days:

January 1 38.5°F December 27 38.8°F
December 31 38.8°F December 26 39.2°F
December 30 38.7°F December 25 39.4°F
December 29 38.7°F December 24 38.5°F
December 28 38.5°F December 23 38.8°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 27.5 °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 11.1 mph
November 10.8 mph

Toronto on a weather map

Toronto
+3°F
SE 12 mph
Feels like: -11°F
Precip.: 74%
Places in Canada:
Name
°F
+36°F
+34°F
-11°F
+28°F
-26°F
-4°F
+12°F
+16°F
+14°F
+9°F
+27°F
+30°F
+32°F
+3°F
24 Hours Forecast
Toronto
Local time: 04:02
January 01, thursday
0600
0°F
SE
11 mph
0900
10°F
E
9 mph
1200
16°F
E
9 mph
1500
19°F
E
16 mph
1800
18°F
E
14 mph
2100
16°F
NE
15 mph
January 02, friday
0000
16°F
E
13 mph
0300
18°F
E
12 mph
Units of measurement: °C / °F