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
December's arrival brings an average high-temperature of a frosty 8.9°C (48°F), slightly deviating from November's 10.6°C (51.1°F). A consistent nighttime average temperature of 6.8°C (44.2°F) is maintained during December.Humidity
The average relative humidity in December in Gaerwen is 81%.Rainfall
In December, the rain falls for 19.5 days. Throughout December, 48mm (1.89") of precipitation is accumulated. In Gaerwen, during the entire year, the rain falls for 196.7 days and collects up to 430mm (16.93") of precipitation.Snowfall
January through March, November and December are months with snowfall in Gaerwen, United Kingdom. In Gaerwen, during December, snow falls for 1.1 days and regularly aggregates up to 5mm (0.2") of snow. Throughout the year, in Gaerwen, there are 5.5 snowfall days, and 29mm (1.14") of snow is accumulated.Daylight
The month with the shortest days in Gaerwen is December, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 8:09 am and sunset at 4:03 pm. On the last day of December, in Gaerwen, sunrise is at 8:31 am and sunset at 4:09 pm GMT.
Sunshine
The month with the least sunshine is December, with an average of 3.7h of sunshine.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 reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 2 in December transforms into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Gaerwen?
What is the average humidity in December in Gaerwen?
How much does it rain in Gaerwen in December?
How many days does it snow in December in Gaerwen?
What is the month with the shortest days in Gaerwen?
How many hours of daylight does Gaerwen have in December?
When are sunrise and sunset in December in Gaerwen?
What is the month with the least sunshine in Gaerwen?
How long on average sun shines in December in Gaerwen?
What is the month with the lowest UV index in Gaerwen?
How high is the UV index in December in Gaerwen?
Average temperature in December
Gaerwen, United Kingdom
- Average high temperature in December: 8.9°C
The warmest month (with the highest average high temperature) is August (16.6°C).
The month with the lowest average high temperature is February (7.3°C).
- Average low temperature in December: 6.8°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in December
Gaerwen, United Kingdom
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.7mbar).
Average wind speed in December
Gaerwen, United Kingdom
- Average wind speed in December: 28.6km/h
The windiest month (with the highest average wind speed) is December (28.6km/h).
The calmest month (with the lowest average wind speed) is June (17.2km/h).
Average humidity in December
Gaerwen, United Kingdom
- Average humidity in December: 81%
The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are April and November (80%).
Average rainfall in December
Gaerwen, United Kingdom
- Average rainfall in December: 48mm
The wettest month (with the highest rainfall) is November (51mm).
The driest months (with the least rainfall) are April and May (21mm).
Average rainfall days in December
Gaerwen, United Kingdom
- Average rainfall days in December: 19.5 days
The month with the highest number of rainy days is August (19.9 days).
The month with the least rainy days is June (13.2 days).
Average snowfall in December
Gaerwen, United Kingdom
- 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
Gaerwen, United Kingdom
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.1 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
Gaerwen, 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: 3h and 4min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in December
Gaerwen, United Kingdom
- Average sunshine days in December: 6.2 days
The month with the most sunshine days is June (14.7 days).
The month with the least sunshine days is December (6.2 days).
Average UV index in December
Gaerwen, 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
Gaerwen, United Kingdom
- Average cloud cover in December: 65
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility in December
Gaerwen, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
