December weather forecastLlanfaethlu, United Kingdom
December
Weather in December
December, the first month of the winter in Llanfaethlu, is also a frosty month, with temperature in the range of an average high of 9.5°C (49.1°F) and an average low of 7.5°C (45.5°F).Temperature
The introduction of December notes a subtle temperature variation to a chilly 9.5°C (49.1°F) from November's 10.9°C (51.6°F). December nights anticipate an average temperature of 7.5°C (45.5°F), a modest decline from the daytime.Humidity
In Llanfaethlu, the average relative humidity in December is 80%.Rainfall
In Llanfaethlu, United Kingdom, during December, the rain falls for 22.8 days and regularly aggregates up to 80mm (3.15") of precipitation. Throughout the year, in Llanfaethlu, there are 233.6 rainfall days, and 739mm (29.09") of precipitation is accumulated.Snowfall
Months with snowfall in Llanfaethlu are January through March, November and December. The months with the most snowfall in Llanfaethlu are January and December, with an average 4mm (0.16") of accumulated snow.Daylight
The month with the shortest days in Llanfaethlu is December, with an average of 7h and 36min of daylight.On the first day of December in Llanfaethlu, sunrise is at 8:11 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 8:33 am and sunset at 4:09 pm GMT.
Sunshine
The month with the least sunshine is December, with an average of 3.6h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Llanfaethlu. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Llanfaethlu, United Kingdom
- Average high temperature in December: 9.5°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 (7.8°C).
- Average low temperature in December: 7.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure in December
Llanfaethlu, 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
Llanfaethlu, United Kingdom
- Average wind speed in December: 31.3km/h
The windiest month (with the highest average wind speed) is December (31.3km/h).
The calmest month (with the lowest average wind speed) is June (18.7km/h).
Average humidity in December
Llanfaethlu, United Kingdom
- Average humidity in December: 80%
The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is November (79%).
Average rainfall in December
Llanfaethlu, United Kingdom
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is May (36mm).
Average rainfall days in December
Llanfaethlu, United Kingdom
- Average rainfall days in December: 22.8 days
The month with the highest number of rainy days is August (23.4 days).
The month with the least rainy days is April (15.6 days).
Average snowfall in December
Llanfaethlu, United Kingdom
- Average snowfall in December: 4mm
The months with the highest snowfall are January and December (4mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Llanfaethlu, United Kingdom
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is January (1 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
Llanfaethlu, United Kingdom
- Average daylight in December: 7h and 36min
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 36min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Llanfaethlu, United Kingdom
- Average sunshine days in December: 4.3 days
The month with the most sunshine days is May (12.3 days).
The month with the least sunshine days is December (4.3 days).
Average UV index in December
Llanfaethlu, 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 and December (UV index 2).
Average cloud cover in December
Llanfaethlu, 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
Llanfaethlu, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
