December weather forecastKillybegs, Ireland
December
Weather in December
December, the first month of the winter in Killybegs, is still a chilly month, with temperature in the range of an average low of 4.4°C (39.9°F) and an average high of 7.5°C (45.5°F).Temperature
The initiation of December sees an average high-temperature of a still frosty 7.5°C (45.5°F), showing minor variations from the previous month. Nighttime in Killybegs, during December, brings an average low of 4.4°C (39.9°F), a modest reduction from the day's peak.Humidity
The average relative humidity in December is 86%.Rainfall
In Killybegs, in December, during 20.3 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Killybegs, during the entire year, the rain falls for 234.8 days and collects up to 634mm (24.96") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Killybegs, during December, snow falls for 0.6 days and regularly aggregates up to 6mm (0.24") of snow. Throughout the year, in Killybegs, there are 5.4 snowfall days, and 60mm (2.36") of snow is accumulated.Sea temperature
In Killybegs, in December, the average water temperature is 10.9°C (51.6°F).Note: In 10.9°C (51.6°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
December has the shortest days of the year in Killybegs, with an average of 7h and 24min of daylight.On the first day of the month, sunrise is at 8:33 am and sunset at 4:12 pm. On the last day of December, sunrise is at 8:56 am and sunset at 4:17 pm GMT.
Sunshine
The average sunshine in December is 3.5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Killybegs, Ireland
- Average high temperature in December: 7.5°C
The warmest month (with the highest average high temperature) is July (16.2°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in December: 4.4°C
The months with the highest average low temperature are July and August (11.3°C).
The coldest months (with the lowest average low temperature) are January and February (3.4°C).
Average pressure in December
Killybegs, Ireland
- Average pressure in December: 1008.6mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.8mbar).
Average wind speed in December
Killybegs, Ireland
- Average wind speed in December: 23km/h
The windiest month (with the highest average wind speed) is January (23.7km/h).
The calmest month (with the lowest average wind speed) is July (14.5km/h).
Average humidity in December
Killybegs, Ireland
- Average humidity in December: 86%
The months with the highest relative humidity are January, July, August and September (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in December
Killybegs, Ireland
- Average rainfall in December: 58mm
The wettest month (with the highest rainfall) is August (75mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in December
Killybegs, Ireland
- Average rainfall days in December: 20.3 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is February (16.8 days).
Average snowfall in December
Killybegs, Ireland
- Average snowfall in December: 6mm
The month with the highest snowfall is January (20mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Killybegs, Ireland
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in December
Killybegs, Ireland
- Average sea temperature in December: 10.9°C
The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (9.2°C).
Average daylight in December /
Average sunshine in December
Killybegs, Ireland
- Average daylight in December: 7h and 24min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is June (Average sunshine: 7h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Killybegs, Ireland
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is May (9.9 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in December
Killybegs, Ireland
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Killybegs, Ireland
- Average cloud cover in December: 67
The months with the most cloud cover are January and August (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in December
Killybegs, Ireland
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





