Current sea water temperature:
+41.2°F
| Minimum sea water temperature in December: | 47.7°F |
| Maximum sea water temperature in December: | 38.1°F |
| Average sea water temperature in December: | 42.1°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 5 | 41.2°F | November 30 | 43.9°F |
| December 4 | 41.2°F | November 29 | 45.0°F |
| December 3 | 42.4°F | November 28 | 45.7°F |
| December 2 | 42.3°F | November 27 | 45.7°F |
| December 1 | 43.9°F | November 26 | 45.9°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
December
December
| 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: 05:02
December 05, friday
0600
14°F
N
9 mph
9 mph
0900
19°F
N
10 mph
10 mph
1200
27°F
N
10 mph
10 mph
1500
30°F
NE
11 mph
11 mph
1800
30°F
NE
8 mph
8 mph
2100
32°F
NE
9 mph
9 mph
December 06, saturday
0000
30°F
NE
12 mph
12 mph
0300
30°F
NE
15 mph
15 mph
