Current sea water temperature:
+37.8°F
| Minimum sea water temperature in December: | 47.7°F |
| Maximum sea water temperature in December: | 37.8°F |
| Average sea water temperature in December: | 41.8°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:
| December 28 | 37.8°F | December 23 | 38.5°F |
| December 27 | 38.3°F | December 22 | 38.7°F |
| December 26 | 38.7°F | December 21 | 39.4°F |
| December 25 | 38.3°F | December 20 | 39.4°F |
| December 24 | 38.1°F | December 19 | 39.4°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:
2025
2024
2023
The average sea water temperature in July of 2025 was 74.3°F. The highest and lowest sea temperatures during the month were 78.4°F and 67.1°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
January
January
| 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: 16:17
December 28, sunday
1800
36°F
W
8 mph
8 mph
2100
36°F
W
6 mph
6 mph
December 29, monday
0000
41°F
NW
7 mph
7 mph
0300
46°F
N
3 mph
3 mph
0600
43°F
NE
18 mph
18 mph
0900
36°F
NE
32 mph
32 mph
1200
30°F
NE
34 mph
34 mph
1500
28°F
NE
34 mph
34 mph
