Current sea water temperature:
+73.4°F
| Minimum sea water temperature in July: | 78.4°F |
| Maximum sea water temperature in July: | 67.1°F |
| Average sea water temperature in July: | 73.2°F |
| more information | |
14 days
forecast
forecast
| Niagara-on-the-Lake |
monthly
weather
weather
| Niagara-on-the-Lake |
Sea water temperature for the last 10 days:
| July 17 | 73.4°F | July 12 | 73.4°F |
| July 16 | 73.9°F | July 11 | 72.9°F |
| July 15 | 73.6°F | July 10 | 73.0°F |
| July 14 | 72.7°F | July 9 | 73.0°F |
| July 13 | 72.1°F | July 8 | 73.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Niagara-on-the-Lake?
Based on the data about daily sea water temperature for the last three years the warmest sea in Niagara-on-the-Lake was noticed in August, July and September.
Monthly Sea Temperatures in Niagara-on-the-Lake, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 74.7°F. The highest and lowest sea temperatures during the month were 77.7°F and 70.0°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 72.9°F. The highest and lowest sea temperatures during the month were 74.3°F and 69.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 70.0°F and 65.7°F.
current
weather
weather
| Niagara-on-the-Lake |
weather in
July
July
| Niagara-on-the-Lake |
Best time for vacation in Niagara-on-the-Lake
Niagara-on-the-Lake on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Niagara-on-the-Lake
Local time: 08:07
July 17, friday
0900

72°F
E
6 mph
6 mph
1200

82°F
SE
6 mph
6 mph
1500

84°F
SW
4 mph
4 mph
1800

86°F
NW
0 mph
0 mph
2100

73°F
NE
4 mph
4 mph
July 18, saturday
0000

72°F
NE
5 mph
5 mph
0300

70°F
NE
7 mph
7 mph
0600

70°F
N
9 mph
9 mph




























