Current sea water temperature:
+73.4°F
| Minimum sea water temperature in July: | 77.5°F |
| Maximum sea water temperature in July: | 59.0°F |
| Average sea water temperature in July: | 69.1°F |
| more information | |
14 days
forecast
forecast
| Hamilton |
monthly
weather
weather
| Hamilton |
Sea water temperature for the last 10 days:
| July 17 | 73.4°F | July 12 | 69.6°F |
| July 16 | 73.0°F | July 11 | 67.3°F |
| July 15 | 71.8°F | July 10 | 67.8°F |
| July 14 | 72.3°F | July 9 | 67.3°F |
| July 13 | 70.7°F | July 8 | 66.4°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 68.1°F. The highest and lowest sea temperatures during the month were 73.4°F and 63.9°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
July
July
| Hamilton |
Best time for vacation in Hamilton
Hamilton on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Hamilton
Local time: 07:27
July 17, friday
0900
72°F
SE
5 mph
5 mph
1200
86°F
SE
6 mph
6 mph
1500
93°F
SE
6 mph
6 mph
1800
88°F
SE
7 mph
7 mph
2100
75°F
SE
5 mph
5 mph
July 18, saturday
0000
70°F
SE
2 mph
2 mph
0300
68°F
N
4 mph
4 mph
0600
66°F
NE
6 mph
6 mph
