December weather forecast
Charlottetown, Canada

December

Weather in December

December seizes the mantle of the coldest month of the year in Charlottetown, following the cooling trend set by November. A combination of low temperatures, high snowfall, and reduced daylight hours renders the city a winter wonderland. The holiday spirit is elevated by an increase in snowfall and a decrease in sea temperature. With a rise in the average wind speed, December is the windiest month with gusts reaching up to 33.9km/h (21.1mph). This chilly weather sets the stage for the year-end celebrations in Charlottetown.

Temperature

December's onset corresponds with a shift in the average high-temperature, moving from a chilly 6.5°C (43.7°F) in November to a cold 1.5°C (34.7°F). In Charlottetown, December is characterized by an average low-temperature of -2.5°C (27.5°F), indicating a minor drop from daytime highs.

Humidity

The average relative humidity in December in Charlottetown is 82%.

Rainfall

In December, in Charlottetown, the rain falls for 11.1 days. Throughout December, 73mm (2.87") of precipitation is accumulated. In Charlottetown, during the entire year, the rain falls for 144.1 days and collects up to 715mm (28.15") of precipitation.

Snowfall

Months with snowfall in Charlottetown are January through May, November and December. December is the month with the most snowfall. Snow falls for 12.5 days and accumulates 121mm (4.76") of snow.

Sea temperature

In Charlottetown, in December, the average water temperature is 3.6°C (38.5°F).
Note: When swimming, this is deemed life-endangering and extremely risky. The painful cold water instigates fast-paced hyperventilation. Wearing a specialized swimsuit is necessary to lessen thermal harm.

Daylight

December has the shortest days of the year, with an average of 8h and 42min of daylight.
On the first day of the month, sunrise is at 7:35 am and sunset at 4:28 pm. On the last day of December, in Charlottetown, sunrise is at 7:55 am and sunset at 4:36 pm AST.

Sunshine

The average sunshine in December in Charlottetown is 2.7h.

UV index

March and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 1 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Frequently asked questions

How cold is it in Charlottetown in December?
In December, the average high-temperature and low-temperature are 1.5°C (34.7°F) and -2.5°C (27.5°F) respectively.
What is the average humidity in December in Charlottetown?
The average relative humidity in December in Charlottetown, Canada, is 82%.
How much does it rain in Charlottetown in December?
In Charlottetown, in December, it is raining for 11.1 days, with typically 73mm (2.87") of accumulated precipitation.
What is the snowiest month in Charlottetown?
December is the month with the most snowfall in Charlottetown, Canada. Snow falls for 12.5 days and accumulates 121mm (4.76") of snow.
How many days does it snow in December in Charlottetown?
In Charlottetown, Canada, in December, snow falls for 12.5 days, with typically accumulated 121mm (4.76") of snow.
How cold is the water in December in Charlottetown?
In Charlottetown, the average seawater temperature in December is 3.6°C (38.5°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
What is the month with the shortest days in Charlottetown?
The month with the shortest days is December, with an average of 8h and 42min of daylight.
How many hours of daylight does Charlottetown have in December?
The average day length in December is 8h and 41min.
When is the sunrise / sunset in December in Charlottetown?
In December, on the first day of the month, sunrise is at 7:35 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:36 pm AST.
How long on average sun shines in December in Charlottetown?
In Charlottetown, Canada, the average sunshine duration in December is 2.7h.
When is the lowest UV index in Charlottetown?
March and December, with an average maximum UV index of 1, are months with the lowest UV index in Charlottetown.
What is the UV index intensity in December in Charlottetown?
In Charlottetown, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Charlottetown, Canada
Average temperature in December
Charlottetown, Canada
  • Average high temperature in December: 1.5°C

The warmest month (with the highest average high temperature) is August (21.6°C).
The month with the lowest average high temperature is February (-3.1°C).

  • Average low temperature in December: -2.5°C

The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).

Average pressure in December - Charlottetown, Canada
Average pressure in December
Charlottetown, Canada
  • Average pressure in December: 1013.7mbar

The month with the highest atmospheric pressure is September (1016.3mbar).
The month with the lowest atmospheric pressure is February (1011.8mbar).

Average wind speed in December - Charlottetown, Canada
Average wind speed in December
Charlottetown, Canada
  • Average wind speed in December: 23.5km/h

The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (15.2km/h).

Average humidity in December - Charlottetown, Canada
Average humidity in December
Charlottetown, Canada
  • Average humidity in December: 82%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are September and October (78%).

Average rainfall in December - Charlottetown, Canada
Average rainfall in December
Charlottetown, Canada
  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is March (47mm).

Average rainfall days in December - Charlottetown, Canada
Average rainfall days in December
Charlottetown, Canada
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in December - Charlottetown, Canada
Average snowfall in December
Charlottetown, Canada
  • Average snowfall in December: 121mm

The month with the highest snowfall is December (121mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in December - Charlottetown, Canada
Average snowfall days in December
Charlottetown, Canada
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in December - Charlottetown, Canada
Average sea temperature in December
Charlottetown, Canada
  • Average sea temperature in December: 3.6°C

The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest months (with the lowest average sea temperature) are February and March (-1.1°C).

Average daylight in December / Average sunshine in December - Charlottetown, Canada
Average daylight in December /
Average sunshine in December
Charlottetown, Canada
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in December - Charlottetown, Canada
Average sunshine days in December
Charlottetown, Canada
  • Average sunshine days in December: 7.4 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is December (7.4 days).

Average UV index in December - Charlottetown, Canada
Average UV index in December
Charlottetown, Canada
  • Average UV index in December: 1

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are March and December (UV index 1).

Average cloud cover in December - Charlottetown, Canada
Average cloud cover in December
Charlottetown, Canada
  • Average cloud cover in December: 73

The months with the most cloud cover are January and December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December - Charlottetown, Canada
Average visibility in December
Charlottetown, Canada
  • Average visibility in December: 8km

The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March and December (8km).

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