December weather forecastKillumney, Ireland
December
Weather in December
The first month of the winter, December, is still a chilly month in Killumney, Ireland, with temperature in the range of an average low of 5°C (41°F) and an average high of 8.8°C (47.8°F).Temperature
The introduction of December sees an average high-temperature of a chilly 8.8°C (47.8°F), hardly deviating from November. During December, Killumney's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a wintry 5°C (41°F).Humidity
October and December, with an average relative humidity of 87%, are the most humid months in Killumney.Rainfall
The month with the most rainfall is December, when the rain falls for 16.3 days and typically aggregates up to 66mm (2.6") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Killumney, in December, snow falls for 0.5 days, with typically accumulated 2mm (0.08") of snow. In Killumney, Ireland, during the entire year, snow falls for 3.8 days and aggregates up to 20mm (0.79") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 8:20 am and sunset at 4:27 pm. On the last day of December, sunrise is at 8:41 am and sunset at 4:33 pm GMT.
Sunshine
In December, the average sunshine in Killumney is 4.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Killumney, Ireland
- Average high temperature in December: 8.8°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 5°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in December
Killumney, Ireland
- Average pressure in December: 1012.3mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in December
Killumney, Ireland
- Average wind speed in December: 23.5km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest months (with the lowest average wind speed) are June and July (16.1km/h).
Average humidity in December
Killumney, Ireland
- Average humidity in December: 87%
The months with the highest relative humidity are October and December (87%).
The months with the lowest relative humidity are February, March and April (84%).
Average rainfall in December
Killumney, Ireland
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is March (33mm).
Average rainfall days in December
Killumney, Ireland
- Average rainfall days in December: 16.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (13.5 days).
Average snowfall in December
Killumney, Ireland
- Average snowfall in December: 2mm
The month with the highest snowfall is March (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Killumney, Ireland
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.2 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
Killumney, Ireland
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Killumney, Ireland
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in December
Killumney, Ireland
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Killumney, Ireland
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in December
Killumney, Ireland
- Average visibility in December: 9km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).
