Current sea water temperature:
+37.6°F
| Minimum sea water temperature in January: | 39.7°F |
| Maximum sea water temperature in January: | 35.2°F |
| Average sea water temperature in January: | 37.9°F |
| more information | |
14 days
forecast
forecast
| Hamilton |
monthly
weather
weather
| Hamilton |
Sea water temperature for the last 10 days:
| January 13 | 37.6°F | January 8 | 37.6°F |
| January 12 | 37.8°F | January 7 | 37.6°F |
| January 11 | 38.5°F | January 6 | 37.8°F |
| January 10 | 38.5°F | January 5 | 37.9°F |
| January 9 | 37.6°F | January 4 | 38.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Hamilton?
Based on the data about daily sea water temperature for the last three years the warmest sea in Hamilton was noticed in August, July and September.
Monthly Sea Temperatures in Hamilton, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.8°F. The highest and lowest sea temperatures during the month were 76.6°F and 69.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 70.6°F. The highest and lowest sea temperatures during the month were 75.6°F and 63.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.3°F. The highest and lowest sea temperatures during the month were 70.2°F and 60.4°F.
current
weather
weather
| Hamilton |
weather in
January
January
| Hamilton |
Best time for vacation in Hamilton
Hamilton on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Hamilton
Local time: 07:14
January 13, tuesday
0900

32°F
NE
14 mph
14 mph
1200

36°F
NE
17 mph
17 mph
1500

37°F
NE
22 mph
22 mph
1800

37°F
NE
25 mph
25 mph
2100

37°F
NE
23 mph
23 mph
January 14, wednesday
0000

36°F
NE
21 mph
21 mph
0300

36°F
NE
17 mph
17 mph
0600

34°F
NE
16 mph
16 mph





























