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
The ushering in of December brings an average high-temperature of a still chilly 7.1°C (44.8°F), closely mirroring the 9.3°C (48.7°F) of November. Bryn registers a gentle descent to an average nighttime low of 3.2°C (37.8°F) in December from its daytime highs.Humidity
January and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Bryn, in December, it is raining for 6.7 days, with typically 14mm (0.55") of accumulated precipitation. In Bryn, during the entire year, the rain falls for 87.5 days and collects up to 140mm (5.51") of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows in Bryn. Throughout December, in the average 1.5 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, there are 5.5 snowfall days, and 18mm (0.71") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 36min of daylight.On the first day of December in Bryn, sunrise is at 8:04 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 8:26 am and sunset at 4:01 pm GMT.
Sunshine
In Bryn, the average sunshine in December is 4h.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 unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Bryn?
What are the most humid months in Bryn?
What is the average humidity in December in Bryn?
How much does it rain in Bryn in December?
When does it start to snow in Bryn?
What is the month with the shortest days in Bryn?
What is the average length of the day in December in Bryn?
When are sunrise and sunset in December in Bryn?
How long on average sun shines in December in Bryn?
What is the month with the lowest UV index in Bryn?
What is the UV index intensity in December in Bryn?
Average temperature in December
Bryn, United Kingdom
- Average high temperature in December: 7.1°C
The warmest month (with the highest average high temperature) is July (19.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 3.2°C
The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is February (2°C).
Average pressure in December
Bryn, United Kingdom
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in December
Bryn, United Kingdom
- Average wind speed in December: 16.9km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is June (12.1km/h).
Average humidity in December
Bryn, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Bryn, United Kingdom
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is June (19mm).
The driest month (with the least rainfall) is May (6mm).
Average rainfall days in December
Bryn, United Kingdom
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (10.1 days).
The month with the least rainy days is September (5.4 days).
Average snowfall in December
Bryn, United Kingdom
- Average snowfall in December: 4mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Bryn, United Kingdom
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (1.8 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
Bryn, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are April and May (Average sunshine: 7h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Bryn, United Kingdom
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is March (21.8 days).
The month with the least sunshine days is July (17 days).
Average UV index in December
Bryn, 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, November and December (UV index 2).
Average cloud cover in December
Bryn, United Kingdom
- Average cloud cover in December: 62
The months with the most cloud cover are January and December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 50).
Average visibility in December
Bryn, 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).
