Measurements:
°C
°F
Hamilton
38°F
W 12 mph
Feels like: 32°F
Precip: 0%
World Resorts Canada Hamilton Weather December Weather in Hamilton

Hamilton Weather: December

Average Day Temperature: 33.8°F
Average Night Temperature: 30.1°F
Sea Water Temperature: 39.9°F
Number of Sunny Days: 4 days
Sunshine Hours: 9.0 - 9.2 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.8 in
Number of Snowy Days: 1 day

Air Temperature in December, °F

Select Year: 2025 2024 2023

The highest day temperature in December 2025 was 54°F. The lowest night temperature was 9°F. The average values for day and night temperatures during December were 28.0°F и 22.8°F respectivly.

Hamilton Water Sea Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Hamilton was 38.1°F. The maximum and minimum values were 36.6°F and 40.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation Totals in December, in

Precipitation total in December for Hamilton is 0.8 in.

Wind Speed in December, mph

The average wind speed in December is 10.6 mph. It makes December the most windy month of the year for Hamilton.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Hamilton in December is 3.2 hours.

Best Time to Visit Hamilton
The most sunny months:
September 15 days
August 14 days
July 13 days
The most warm months:
July 82.3 °F
August 80.7 °F
June 75.6 °F
Warmest sea temperature:
August 73.7 °F
July 71.3 °F
September 69.7 °F
The most cold months:
January 27.0 °F
February 27.7 °F
December 33.8 °F
The most rainy months:
April 3 days
July 2 days
June 2 days
The most windy months:
December 11 mph
November 11 mph
February 10 mph

Hamilton on the Weather Map

Canada Resorts:
NAME
Halifax +38
Kingston +32
Montreal +34
Niagara Falls +42
Ottawa +30
Prince Edward Island +36
Quebec +28
Saint John +36
St. John's +34
Sydney +36
Toronto +36
Vancouver +48
Victoria +48
Winnipeg +14
Yellowknife -2
24 Hours Weather Forecast
Hamilton
Local time: 15:30
10 jan, saturday
1800 36°F
E
2 mph
2100 32°F
NE
14 mph
11 jan, sunday
0000 32°F
E
19 mph
0300 32°F
E
19 mph
0600 28°F
NE
11 mph
0900 26°F
E
20 mph
1200 28°F
E
21 mph
1500 28°F
E
21 mph