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
Llandeilo's entry into December measures an average high-temperature of a still chilly 6.7°C (44.1°F), closely parallel to the preceding month. In Llandeilo, the December nights are characterized by an average low-temperature of 2.8°C (37°F), a minor dip from daytime readings.Humidity
With an average relative humidity of 92%, December is the most humid month.Rainfall
In December, in Llandeilo, the rain falls for 15 days. Throughout December, 44mm (1.73") of precipitation is accumulated. Throughout the year, there are 165.1 rainfall days, and 406mm (15.98") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Llandeilo, in December, snow falls for 2.1 days, with typically accumulated 20mm (0.79") of snow. Throughout the year, there are 14.6 snowfall days, and 137mm (5.39") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 8:01 am and sunset at 4:08 pm. On the last day of December, in Llandeilo, sunrise is at 8:23 am and sunset at 4:15 pm GMT.
Sunshine
In Llandeilo, the average sunshine in December is 3.2h.UV index
The months with the lowest UV index in Llandeilo are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
Is December cold in Llandeilo?
What is the most humid month in Llandeilo?
What is the average humidity in December in Llandeilo?
How much does it rain in Llandeilo in December?
How much does it snow in Llandeilo in December?
What is the month with the shortest days in Llandeilo?
How many hours of daylight does Llandeilo have in December?
When are sunrise and sunset in December in Llandeilo?
How long on average sun shines in December in Llandeilo?
When is the lowest UV index in Llandeilo?
How high is the UV index in December in Llandeilo?
Average temperature in December
Llandeilo, United Kingdom
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure in December
Llandeilo, United Kingdom
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in December
Llandeilo, United Kingdom
- Average wind speed in December: 18.5km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest months (with the lowest average wind speed) are June and July (13km/h).
Average humidity in December
Llandeilo, United Kingdom
- Average humidity in December: 92%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Llandeilo, United Kingdom
- Average rainfall in December: 44mm
The wettest months (with the highest rainfall) are June and November (45mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in December
Llandeilo, United Kingdom
- Average rainfall days in December: 15 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in December
Llandeilo, United Kingdom
- Average snowfall in December: 20mm
The month with the highest snowfall is November (35mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Llandeilo, United Kingdom
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (4.8 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
Llandeilo, 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 1min
The months with the most sunshine are April and May (Average sunshine: 6h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Llandeilo, United Kingdom
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Llandeilo, 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, November and December (UV index 2).
Average cloud cover in December
Llandeilo, United Kingdom
- Average cloud cover in December: 70
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in December
Llandeilo, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are February and March (9km).
The month with the lowest visibility is August (7km).
Llandeilo, United Kingdom
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