Current sea water temperature:
+39.4°F
| Minimum sea water temperature in April: | 45.1°F |
| Maximum sea water temperature in April: | 36.1°F |
| Average sea water temperature in April: | 39.7°F |
| more information | |
14 days
forecast
forecast
| Hamilton |
monthly
weather
weather
| Hamilton |
Sea water temperature for the last 10 days:
| April 27 | 39.4°F | April 22 | 38.1°F |
| April 26 | 39.6°F | April 21 | 39.0°F |
| April 25 | 39.4°F | April 20 | 37.8°F |
| April 24 | 39.7°F | April 19 | 37.9°F |
| April 23 | 39.9°F | April 18 | 39.2°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
May
May
| Hamilton |
Best time for vacation in Hamilton
Hamilton on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Hamilton
Local time: 12:56
April 27, monday
1500
57°F
W
9 mph
9 mph
1800
54°F
SW
7 mph
7 mph
2100
48°F
W
5 mph
5 mph
April 28, tuesday
0000
52°F
NW
10 mph
10 mph
0300
52°F
N
11 mph
11 mph
0600
52°F
N
18 mph
18 mph
0900
52°F
N
21 mph
21 mph
1200
54°F
N
20 mph
20 mph
