December weather forecast
Crynant, United Kingdom

December

Weather in December

December, the first month of the winter in Crynant, is still a chilly month, with an average temperature ranging between min 5.2°C (41.4°F) and max 8.3°C (46.9°F).

Temperature

As December unfolds, the average high-temperature reaches a frosty 8.3°C (46.9°F), hinting at a slight fluctuation from the previous month. A mild drop to an average of 5.2°C (41.4°F) marks the nights during December.

Humidity

January and December, with an average relative humidity of 87%, are the most humid months in Crynant, United Kingdom.

Rainfall

The months with the most rainfall are November and December, with an average 66mm (2.6") of precipitation.

Snowfall

January through March and December are months with snowfall in Crynant. December is the first month it typically snows. Throughout December, in the average 1.1 snowfall days, it receives 9mm (0.35") of snow. Throughout the year, in Crynant, there are 5.4 snowfall days, and 28mm (1.1") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 7h and 54min of daylight.
On the first day of the month, sunrise is at 8:00 am and sunset at 4:08 pm. On the last day of December, in Crynant, sunrise is at 8:21 am and sunset at 4:14 pm GMT.

Sunshine

In December, the average sunshine in Crynant, United Kingdom, is 3.8h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Crynant. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What are the temperatures in Crynant in December?
The high-temperature in Crynant during December is 8.3°C (46.9°F) and the low-temperature is 5.2°C (41.4°F).
What is the most humid month in Crynant?
January and December, with an average relative humidity of 87%, are most humid months.
What is the average humidity in December in Crynant?
In Crynant, the average relative humidity in December is 87%.
What is the rainiest month in Crynant?
The wettest months in Crynant are November and December, with an average 66mm (2.6") of rainfall.
How many days does it rain in December in Crynant?
In December, in Crynant, United Kingdom, the rain falls for 16.9 days. Throughout December, 66mm (2.6") of precipitation is accumulated.
When does it start snowing in Crynant?
December is the first month it typically snows. Throughout December, in the average 1.1 snowfall days, it receives 9mm (0.35") of snow.
What is the month with the shortest days in Crynant?
The month with the shortest days in Crynant is December, with an average of 7h and 54min of daylight.
How many hours of daylight does Crynant have in December?
In Crynant, the average day length in December is 7h and 53min.
When is the sunrise / sunset in December in Crynant?
In December, on the first day of the month, sunrise is at 8:00 am and sunset at 4:08 pm. On the last day of the month, in Crynant, United Kingdom, sunrise is at 8:21 am and sunset at 4:14 pm GMT.
How many hours of sunshine does Crynant have in December?
In Crynant, United Kingdom, the average sunshine duration in December is 3.8h.
When is the lowest UV index in Crynant?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Crynant.
What is the UV index reading in December in Crynant?
In December, the average daily maximum UV index in Crynant is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Crynant, United Kingdom
  • Average high temperature in December: 8.3°C

The warmest month (with the highest average high temperature) is July (18.2°C).
The months with the lowest average high temperature are January and February (7.3°C).

  • Average low temperature in December: 5.2°C

The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).

Average pressure in December
Crynant, United Kingdom
  • Average pressure in December: 1013.7mbar

The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in December
Crynant, United Kingdom
  • Average wind speed in December: 22.4km/h

The windiest month (with the highest average wind speed) is December (22.4km/h).
The calmest month (with the lowest average wind speed) is June (14.9km/h).

Average humidity in December
Crynant, United Kingdom
  • Average humidity in December: 87%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (81%).

Average rainfall in December
Crynant, United Kingdom
  • Average rainfall in December: 66mm

The wettest months (with the highest rainfall) are November and December (66mm).
The driest month (with the least rainfall) is May (31mm).

Average rainfall days in December
Crynant, United Kingdom
  • Average rainfall days in December: 16.9 days

The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (12.6 days).

Average snowfall in December
Crynant, United Kingdom
  • Average snowfall in December: 9mm

The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Crynant, United Kingdom
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is January (2 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
Crynant, 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 5min

The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Crynant, United Kingdom
  • Average sunshine days in December: 11.1 days

The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Crynant, 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
Crynant, United Kingdom
  • Average cloud cover in December: 63

The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 47).

Average visibility in December
Crynant, 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).

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