December weather forecastMillstreet, Ireland
December
Weather in December
December, the first month of the winter in Millstreet, is also a frosty month, with an average temperature ranging between min 3.6°C (38.5°F) and max 7.8°C (46°F).Temperature
December's onset records an average high-temperature of a still chilly 7.8°C (46°F), a near match to November's 9.3°C (48.7°F). Nighttime temperature in Millstreet, Ireland, reflects an average dip to a cold 3.6°C (38.5°F) in December, subtly cooler than its daytime highs.Humidity
January, October through December, with an average relative humidity of 90%, are the most humid months.Rainfall
The month with the most rainfall in Millstreet, Ireland, is December, when the rain falls for 18.2 days and typically aggregates up to 59mm (2.32") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Millstreet, in December, snow falls for 0.9 days, with typically accumulated 5mm (0.2") of snow. Throughout the year, there are 4.7 snowfall days, and 28mm (1.1") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 7h and 48min of daylight.On the first day of December, sunrise is at 8:22 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 8:44 am and sunset at 4:34 pm GMT.
Sunshine
The months with the least sunshine in Millstreet are January and December, with an average of 3.2h of sunshine.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millstreet, Ireland
- Average high temperature in December: 7.8°C
The warmest month (with the highest average high temperature) is July (17.1°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in December: 3.6°C
The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is March (2.8°C).
Average pressure in December
Millstreet, Ireland
- Average pressure in December: 1011.6mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.7mbar).
Average wind speed in December
Millstreet, Ireland
- Average wind speed in December: 18.1km/h
The windiest month (with the highest average wind speed) is February (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.2km/h).
Average humidity in December
Millstreet, Ireland
- Average humidity in December: 90%
The months with the highest relative humidity are January, October, November and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in December
Millstreet, Ireland
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in December
Millstreet, Ireland
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is January (18.8 days).
The month with the least rainy days is September (13.6 days).
Average snowfall in December
Millstreet, Ireland
- Average snowfall in December: 5mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Millstreet, Ireland
- Average snowfall days in December: 0.9 days
The months with the highest number of snowfall days are February and March (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Millstreet, Ireland
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is June (Average sunshine: 5h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in December
Millstreet, Ireland
- Average sunshine days in December: 10 days
The month with the most sunshine days is September (12.1 days).
The month with the least sunshine days is January (8.7 days).
Average UV index in December
Millstreet, Ireland
- Average UV index in December: 2
The months with the highest UV index are May, June and August (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
Millstreet, Ireland
- Average cloud cover in December: 70
The months with the most cloud cover are July and August (Cloud cover 74).
The month with the least cloud cover is April (Cloud cover 63).
Average visibility in December
Millstreet, Ireland
- Average visibility in December: 8km
The month with the highest visibility is February (9km).
The months with the lowest visibility are July, August and September (7km).
