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
Weather in December
Temperature
Llanystumdwy observes a minor difference in average high-temperatures between November's 10.8°C (51.4°F) and December's 9.4°C (48.9°F). December registers an average low temperature of 7.3°C (45.1°F), subtly lower than the daytime maximum.Humidity
The average relative humidity in December in Llanystumdwy is 80%.Rainfall
In Llanystumdwy, United Kingdom, in December, during 23.1 rainfall days, 91mm (3.58") of precipitation is typically accumulated. In Llanystumdwy, during the entire year, the rain falls for 222.9 days and collects up to 765mm (30.12") of precipitation.Snowfall
Months with snowfall in Llanystumdwy are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.7 snowfall days, it receives 5mm (0.2") of snow. In Llanystumdwy, during the entire year, snow falls for 3.5 days and aggregates up to 17mm (0.67") of snow.Daylight
The month with the shortest days in Llanystumdwy is December, with an average of 7h and 42min of daylight.On the first day of the month, sunrise is at 8:07 am and sunset at 4:04 pm. On the last day of December, sunrise is at 8:29 am and sunset at 4:10 pm GMT.
Sunshine
With an average of 3.4h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Llanystumdwy, United Kingdom, are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What is the usual temperature for Llanystumdwy in December?
What is the average humidity in December in Llanystumdwy?
How many days does it rain in December in Llanystumdwy?
When does it start snowing in Llanystumdwy?
What is the month with the shortest days in Llanystumdwy?
How many hours of daylight does Llanystumdwy have in December?
When is the sunrise / sunset in December in Llanystumdwy?
What is the month with the least sunshine in Llanystumdwy?
How long on average sun shines in December in Llanystumdwy?
What are the months with the lowest UV index in Llanystumdwy?
What is the UV index reading in December in Llanystumdwy?
Average temperature in December
Llanystumdwy, United Kingdom
- Average high temperature in December: 9.4°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in December: 7.3°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 (5.7°C).
Average pressure in December
Llanystumdwy, United Kingdom
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in December
Llanystumdwy, United Kingdom
- Average wind speed in December: 30.9km/h
The windiest month (with the highest average wind speed) is December (30.9km/h).
The calmest month (with the lowest average wind speed) is June (18km/h).
Average humidity in December
Llanystumdwy, United Kingdom
- Average humidity in December: 80%
The months with the highest relative humidity are June, July and August (84%).
The month with the lowest relative humidity is November (79%).
Average rainfall in December
Llanystumdwy, United Kingdom
- Average rainfall in December: 91mm
The wettest month (with the highest rainfall) is November (97mm).
The driest month (with the least rainfall) is April (37mm).
Average rainfall days in December
Llanystumdwy, United Kingdom
- Average rainfall days in December: 23.1 days
The month with the highest number of rainy days is December (23.1 days).
The month with the least rainy days is April (14.5 days).
Average snowfall in December
Llanystumdwy, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Llanystumdwy, United Kingdom
- Average snowfall days in December: 0.7 days
The months with the highest number of snowfall days are January and February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Llanystumdwy, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is May (Average sunshine: 8h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Llanystumdwy, United Kingdom
- Average sunshine days in December: 4.5 days
The months with the most sunshine days are April and May (13.5 days).
The month with the least sunshine days is December (4.5 days).
Average UV index in December
Llanystumdwy, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in December
Llanystumdwy, United Kingdom
- Average cloud cover in December: 67
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in December
Llanystumdwy, 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).
Llanystumdwy, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
