December weather forecastSallybrook, Ireland
December
Weather in December
December, the first month of the winter in Sallybrook, is still a chilly month, with an average temperature varying between 8.8°C (47.8°F) and 5°C (41°F).Temperature
Sallybrook's weather in December indicates an average high-temperature of a chilly 8.8°C (47.8°F), nearly consistent with the 10.2°C (50.4°F) of November. Sallybrook registers an average low-temperature of 5°C (41°F) throughout December, a modest decrease from its daytime highs.Humidity
October and December, with an average relative humidity of 87%, are the most humid months in Sallybrook.Rainfall
December is the month with the most rainfall in Sallybrook. Rain falls for 16.3 days and accumulates 66mm (2.6") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Sallybrook, in December, snow falls for 0.5 days, with typically accumulated 2mm (0.08") of snow. In Sallybrook, during the entire year, snow falls for 3.8 days and aggregates up to 20mm (0.79") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 8:19 am and sunset at 4:26 pm. On the last day of December, sunrise is at 8:41 am and sunset at 4:32 pm GMT.
Sunshine
The average sunshine in December in Sallybrook is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sallybrook. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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
Sallybrook, 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).





