Current sea water temperature:
+38.7°F
| Minimum sea water temperature in December: | 46.4°F |
| Maximum sea water temperature in December: | 35.8°F |
| Average sea water temperature in December: | 40.8°F |
| more information | |
14 days
forecast
forecast
| Toronto |
monthly
weather
weather
| Toronto |
Sea water temperature for the last 10 days:
| December 29 | 38.7°F | December 24 | 38.5°F |
| December 28 | 38.5°F | December 23 | 38.8°F |
| December 27 | 38.8°F | December 22 | 39.0°F |
| December 26 | 39.2°F | December 21 | 39.2°F |
| December 25 | 39.4°F | December 20 | 39.0°F |
Monthly sea water temperature, °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.
current
weather
weather
| Toronto |
weather in
January
January
| Toronto |
Best time for vacation in Toronto
Toronto on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Toronto
Local time: 09:26
December 29, monday
1200
32°F
NE
28 mph
28 mph
1500
30°F
E
24 mph
24 mph
1800
25°F
E
23 mph
23 mph
2100
21°F
E
22 mph
22 mph
December 30, tuesday
0000
19°F
SE
22 mph
22 mph
0300
19°F
SE
20 mph
20 mph
0600
19°F
SE
19 mph
19 mph
0900
21°F
SE
20 mph
20 mph
