December weather forecastCavan, Ireland

December

Weather in December

December is the start of the colder season with temperatures falling between 1.8°C (35.2°F) to 6.4°C (43.5°F), notably lower than November's. It experiences similar rainfall amounts to November of 31mm (1.22") but also sees the reappearance of snow at 5mm (0.2"). The switch to the winter month brings back the chilly breeze and the beautifully serene white coat of snow to the Cavan landscape. Around mid-December, the winter solstice marks the shortest daylight hours of the year. As the year ends, Cavan witnesses a magical winter atmosphere enveloping the city.

Temperature

Cavan observes a minor difference in average high-temperatures between November's 8.2°C (46.8°F) and December's 6.4°C (43.5°F). The nights of December in Cavan, Ireland, are characterized by an average low-temperature of 1.8°C (35.2°F), subtly descending from daytime highs.

Humidity

The months with the highest humidity are January, November and December, with an average relative humidity of 92%.

Rainfall

In Cavan, during December, the rain falls for 15.1 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, there are 191.5 rainfall days, and 381mm (15") of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall in Cavan. December is the first month it typically snows in Cavan. Throughout December, in the average 1.1 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Cavan, there are 8.9 snowfall days, and 49mm (1.93") of snow is accumulated.

Daylight

With an average of 7h and 30min of daylight, December has the shortest days of the year.
On the first day of December in Cavan, sunrise is at 8:25 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 8:48 am and sunset at 4:17 pm GMT.

Sunshine

In December, the average sunshine is 3.6h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Cavan, the average high-temperature is 6.4°C (43.5°F), and the average low-temperature is 1.8°C (35.2°F).

January, November and December, with an average relative humidity of 92%, are most humid months in Cavan.

In Cavan, the average relative humidity in December is 92%.

In Cavan, Ireland, in December, it is raining for 15.1 days, with typically 31mm (1.22") of accumulated precipitation.

December is the first month it typically snows in Cavan. Throughout December, in the average 1.1 snowfall days, it receives 5mm (0.2") of snow.

With an average of 7h and 30min of daylight, December has the shortest days of the year in Cavan.

In Cavan, the average day length in December is 7h and 29min.

In December, on the first day of the month, sunrise is at 8:25 am and sunset at 4:11 pm. On the last day of the month, in Cavan, sunrise is at 8:48 am and sunset at 4:17 pm GMT.

In December, the average sunshine duration in Cavan, Ireland, is 3.6h.

The months with the lowest UV index in Cavan are January through March, October through December, with an average maximum UV index of 2.

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

8.2°C

6.4°C

5.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.6km/h

18.4km/h

18.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.6

10.9

Average UV index

Average cloud cover

64%

66%

Average visibility

8km

Average temperature in December
Cavan, Ireland

Average high temperature in December: 6.4°C

The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.9°C).

Average low temperature in December: 1.8°C

The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).

Average pressure in December
Cavan, Ireland

Average pressure in December: 1009.5mbar

The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).

Average wind speed in December
Cavan, Ireland

Average wind speed in December: 17.4km/h

The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11.9km/h).

Average humidity in December
Cavan, Ireland

Average humidity in December: 92%

The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (86%).

Average rainfall in December
Cavan, Ireland

Average rainfall in December: 31mm

The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (21mm).

Average rainfall days in December
Cavan, Ireland

Average rainfall days in December: 15.1 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is September (13.3 days).

Average snowfall in December
Cavan, Ireland

Average snowfall in December: 5mm

The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Cavan, Ireland

Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Cavan, Ireland

Average daylight in December: 7h and 30min

The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).

Average sunshine in December: 3h and 36min

The month with the most sunshine is June (Average sunshine: 6h and 18min).
The months with the least sunshine are January, February and October (Average sunshine: 3h and 30min).

Average sunshine days in December
Cavan, Ireland

Average sunshine days in December: 12 days

The month with the most sunshine days is December (12 days).
The month with the least sunshine days is August (5.4 days).

Average UV index in December
Cavan, Ireland

Average UV index in December: 2

The month with the highest UV index is June (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).