Current sea water temperature:
+38.7°F
| Minimum sea water temperature in December: | 47.8°F |
| Maximum sea water temperature in December: | 36.0°F |
| Average sea water temperature in December: | 41.3°F |
| more information | |
14 days
forecast
forecast
| Niagara Falls |
monthly
weather
weather
| Niagara Falls |
Sea water temperature for the last 10 days:
| December 18 | 38.7°F | December 13 | 38.8°F |
| December 17 | 38.5°F | December 12 | 39.4°F |
| December 16 | 38.5°F | December 11 | 39.9°F |
| December 15 | 38.5°F | December 10 | 40.5°F |
| December 14 | 38.3°F | December 9 | 40.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Niagara Falls?
Based on the data about daily sea water temperature for the last three years the warmest sea in Niagara Falls was noticed in August, July and September.
Monthly Sea Temperatures in Niagara Falls, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 72.9°F. The highest and lowest sea temperatures during the month were 75.9°F and 68.4°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 72.5°F. The highest and lowest sea temperatures during the month were 76.3°F and 65.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.4°F. The highest and lowest sea temperatures during the month were 69.3°F and 62.8°F.
current
weather
weather
| Niagara Falls |
weather in
December
December
| Niagara Falls |
Best time for vacation in Niagara Falls
Niagara Falls on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Niagara Falls
Local time: 03:23
December 18, thursday
0600
32°F
N
6 mph
6 mph
0900
32°F
N
8 mph
8 mph
1200
39°F
N
14 mph
14 mph
1500
41°F
N
14 mph
14 mph
1800
41°F
N
17 mph
17 mph
2100
41°F
N
21 mph
21 mph
December 19, friday
0000
41°F
N
24 mph
24 mph
0300
39°F
NE
22 mph
22 mph
