World Resorts Canada Niagara Falls Weather

Niagara Falls Sea Temperature in December

Average sea water temperature in December:
+40.8°F
Minimum sea water temperature in December: 47.8°F
Maximum sea water temperature in December: 32.9°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 37.8°F. The highest and lowest sea temperatures during the month were 43.3°F and 32.9°F.

Monthly sea water temperature in Niagara Falls, °F

Which Canada resorts have warmest sea in December?

Place name December 2025 December 2024
Tofino 49.4°F 48.7°F
Victoria 48.6°F 47.9°F
Surrey 47.3°F 46.3°F
Nanaimo 47.0°F 46.7°F
North Vancouver 46.3°F 46.3°F
Vancouver 46.3°F 46.3°F
Saint John 44.7°F 44.5°F
Saint Andrews 43.0°F 43.5°F
Halifax 41.7°F 41.3°F
Montreal 41.4°F 40.0°F
Lunenburg 40.8°F 41.3°F
Kingston 40.0°F 43.2°F
Niagara-on-the-Lake 39.9°F 42.9°F
Hamilton 39.3°F 42.2°F
Sydney 39.2°F 40.4°F
Mississauga 39.2°F 41.9°F
Toronto 39.1°F 41.6°F
Barrie 39.0°F 40.7°F
Oshawa 38.4°F 39.7°F
Corner Brook 38.1°F 36.3°F

Best time for vacation in Niagara Falls

Sunniest months:
September 13 days
August 12 days
July 11 days
Warmest months:
July 78.0 °F
August 76.8 °F
June 72.3 °F
Warmest sea temp:
August 72.7 °F
July 71.3 °F
September 69.4 °F
Coldest months:
January 29.7 °F
February 30.2 °F
December 35.8 °F
Rainiest months:
July 3 days
April 3 days
October 2 days
Windiest months:
November 11.9 mph
February 11.6 mph
December 11.6 mph

Niagara Falls on a weather map

Niagara Falls
+21°F
N 2 mph
Feels like: +16°F
Precip.: 0%
Places in Canada:
Name
°F
+41°F
+43°F
+19°F
+10°F
-11°F
-8°F
+12°F
+3°F
+21°F
-2°F
0°F
+28°F
+19°F
+21°F
24 Hours Forecast
Niagara Falls
Local time: 01:22
January 05, monday
0300
21°F
NW
4 mph
0600
19°F
NW
7 mph
0900
27°F
N
7 mph
1200
30°F
N
8 mph
1500
34°F
N
4 mph
1800
34°F
N
3 mph
2100
32°F
NE
4 mph
January 06, tuesday
0000
30°F
NE
4 mph
Units of measurement: °C / °F