World Resorts Canada Hamilton Weather

Hamilton Sea Temperature in December

Average sea water temperature in December:
+40.9°F
Minimum sea water temperature in December: 46.8°F
Maximum sea water temperature in December: 37.8°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 39.3°F. The highest and lowest sea temperatures during the month were 41.7°F and 37.9°F.

Monthly sea water temperature in Hamilton, °F

Which Canada resorts have warmest sea in December?

Place name December 2025 December 2024
Tofino 49.5°F 48.7°F
Victoria 48.7°F 47.9°F
Surrey 47.4°F 46.3°F
Nanaimo 47.2°F 46.7°F
North Vancouver 46.5°F 46.3°F
Vancouver 46.4°F 46.3°F
Saint John 45.0°F 44.5°F
Saint Andrews 43.3°F 43.5°F
Halifax 42.1°F 41.3°F
Montreal 41.8°F 40.0°F
Lunenburg 41.2°F 41.3°F
Kingston 40.3°F 43.2°F
Niagara-on-the-Lake 40.0°F 42.9°F
Sydney 39.6°F 40.4°F
Barrie 39.5°F 40.7°F
Hamilton 39.3°F 42.2°F
Mississauga 39.2°F 41.9°F
Toronto 39.2°F 41.6°F
Corner Brook 38.5°F 36.3°F
Oshawa 38.4°F 39.7°F

Best time for vacation in Hamilton

Sunniest months:
September 15 days
August 14 days
July 13 days
Warmest months:
July 79.0 °F
August 77.6 °F
June 73.1 °F
Warmest sea temp:
August 71.3 °F
July 69.2 °F
September 67.7 °F
Coldest months:
January 29.3 °F
February 29.9 °F
December 35.4 °F
Rainiest months:
April 3 days
July 2 days
June 2 days
Windiest months:
November 10.6 mph
February 10.5 mph
December 10.5 mph

Hamilton on a weather map

Hamilton
+54°F
NE 16 mph
Feels like: +48°F
Precip.: 63%
Places in Canada:
Name
°F
+36°F
+39°F
-4°F
+19°F
-4°F
+16°F
+36°F
+18°F
+55°F
+19°F
+19°F
+32°F
+27°F
+39°F
24 Hours Forecast
Hamilton
Local time: 01:45
December 29, monday
0300
54°F
NE
16 mph
0600
46°F
NE
25 mph
0900
32°F
NE
29 mph
1200
28°F
NE
34 mph
1500
28°F
E
27 mph
1800
27°F
E
25 mph
2100
25°F
E
23 mph
December 30, tuesday
0000
23°F
SE
23 mph
Units of measurement: °C / °F