Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Shifting into December, Gelligaer records an average high-temperature of a still chilly 7.7°C (45.9°F), presenting minor fluctuations compared to the previous month. In Gelligaer, the month of December records an average minimum temperature of 4.4°C (39.9°F), a slight dip from the daily highs.Humidity
November and December, with an average relative humidity of 88%, are the most humid months in Gelligaer.Rainfall
In Gelligaer, during December, the rain falls for 17.1 days and regularly aggregates up to 60mm (2.36") of precipitation. In Gelligaer, United Kingdom, during the entire year, the rain falls for 179.9 days and collects up to 488mm (19.21") of precipitation.Snowfall
January through May, November and December are months with snowfall in Gelligaer. In Gelligaer, United Kingdom, during December, snow falls for 1.8 days and regularly aggregates up to 16mm (0.63") of snow. Throughout the year, there are 11.3 snowfall days, and 91mm (3.58") of snow is accumulated.Daylight
With an average of 7h and 54min of daylight, December has the shortest days of the year in Gelligaer.On the first day of the month, sunrise is at 7:57 am and sunset at 4:06 pm. On the last day of December, in Gelligaer, sunrise is at 8:19 am and sunset at 4:13 pm GMT.
Sunshine
The average sunshine in December in Gelligaer is 3.9h.UV index
The months with the lowest UV index in Gelligaer are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Gelligaer?
What are the most humid months in Gelligaer?
What is the average humidity in December in Gelligaer?
How much does it rain in Gelligaer in December?
How much does it snow in Gelligaer in December?
What is the month with the shortest days in Gelligaer?
What is the average length of the day in December in Gelligaer?
What time are sunrise and sunset in December in Gelligaer?
How many hours of sunshine does Gelligaer have in December?
What is the month with the lowest UV index in Gelligaer?
What is the UV index intensity in December in Gelligaer?
Average temperature in December
Gelligaer, United Kingdom
- Average high temperature in December: 7.7°C
The warmest month (with the highest average high temperature) is July (18.7°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 (12.3°C).
The coldest month (with the lowest average low temperature) is January (3°C).
Average pressure in December
Gelligaer, United Kingdom
- Average pressure in December: 1013.8mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed in December
Gelligaer, United Kingdom
- Average wind speed in December: 20.8km/h
The windiest month (with the highest average wind speed) is February (21.2km/h).
The calmest month (with the lowest average wind speed) is June (14.3km/h).
Average humidity in December
Gelligaer, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is April (82%).
Average rainfall in December
Gelligaer, United Kingdom
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is November (66mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in December
Gelligaer, United Kingdom
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is November (18.3 days).
The month with the least rainy days is September (12.7 days).
Average snowfall in December
Gelligaer, United Kingdom
- Average snowfall in December: 16mm
The months with the highest snowfall are January, February and November (19mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Gelligaer, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Gelligaer, United Kingdom
- Average daylight in December: 7h and 5min
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: 3h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days in December
Gelligaer, United Kingdom
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is April (14.9 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in December
Gelligaer, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (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
Gelligaer, United Kingdom
- Average cloud cover in December: 61
The month with the most cloud cover is November (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 48).
Average visibility in December
Gelligaer, United Kingdom
- 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).
