December weather forecast
Santon Downham, United Kingdom

December

Weather in December

The first month of the winter, December, is still a chilly month in Santon Downham, United Kingdom, with an average temperature varying between 3°C (37.4°F) and 7°C (44.6°F).

Temperature

With the advent of December, Santon Downham's high-temperatures adjust to a still frosty 7°C (44.6°F), closely aligning with the preceding month. Santon Downham documents an average low-temperature of 3°C (37.4°F) for the nights of December.

Humidity

The most humid month is December, with an average relative humidity of 89%.

Rainfall

In Santon Downham, in December, during 13 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, there are 166.7 rainfall days, and 404mm (15.91") of precipitation is accumulated.

Snowfall

Months with snowfall in Santon Downham are January through March and December. December is the first month it typically snows in Santon Downham, United Kingdom. Throughout December, in the average 1.3 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, there are 8.1 snowfall days, and 52mm (2.05") of snow is accumulated.

Daylight

With an average of 7h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:45 am and sunset at 3:47 pm. On the last day of December, sunrise is at 8:07 am and sunset at 3:53 pm GMT.

Sunshine

In Santon Downham, United Kingdom, the average sunshine in December is 4.2h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Santon Downham. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 2 in December leads to these guidelines:
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. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

Is it cold in Santon Downham during December?
In Santon Downham, 7°C (44.6°F) is the average high-temperature and 3°C (37.4°F) is the average low-temperature during December.
What is the most humid month in Santon Downham?
December is the most humid month, with an average relative humidity of 89%.
What is the average humidity in December in Santon Downham?
The average relative humidity in December in Santon Downham is 89%.
How much does it rain in Santon Downham in December?
In December, the rain falls for 13 days. Throughout December, 40mm (1.57") of precipitation is accumulated.
When does it start to snow in Santon Downham?
December is the first month it typically snows in Santon Downham. Throughout December, in the average 1.3 snowfall days, it receives 4mm (0.16") of snow.
What is the month with the shortest days in Santon Downham?
December has the shortest days of the year, with an average of 7h and 48min of daylight.
How many hours of daylight does Santon Downham have in December?
The average day length in December is 7h and 46min.
When is the sunrise / sunset in December in Santon Downham?
On the first day of December in Santon Downham, sunrise is at 7:45 am and sunset at 3:47 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 3:53 pm GMT.
How many hours of sunshine does Santon Downham have in December?
In Santon Downham, the average sunshine duration in December is 4.2h.
What are the months with the lowest UV index in Santon Downham?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the UV index reading in December in Santon Downham?
The average daily maximum UV index in December in Santon Downham is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
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 - Santon Downham, United Kingdom
Average temperature in December
Santon Downham, United Kingdom
  • Average high temperature in December: 7°C

The warmest month (with the highest average high temperature) is August (21.2°C).
The month with the lowest average high temperature is January (6.1°C).

  • Average low temperature in December: 3°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).

Average pressure in December - Santon Downham, United Kingdom
Average pressure in December
Santon Downham, 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 (1010mbar).

Average wind speed in December - Santon Downham, United Kingdom
Average wind speed in December
Santon Downham, United Kingdom
  • Average wind speed in December: 18.4km/h

The windiest months (with the highest average wind speed) are February and December (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).

Average humidity in December - Santon Downham, United Kingdom
Average humidity in December
Santon Downham, United Kingdom
  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).

Average rainfall in December - Santon Downham, United Kingdom
Average rainfall in December
Santon Downham, United Kingdom
  • Average rainfall in December: 40mm

The wettest month (with the highest rainfall) is June (50mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in December - Santon Downham, United Kingdom
Average rainfall days in December
Santon Downham, United Kingdom
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is September (11.3 days).

Average snowfall in December - Santon Downham, United Kingdom
Average snowfall in December
Santon Downham, United Kingdom
  • Average snowfall in December: 4mm

The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December - Santon Downham, United Kingdom
Average snowfall days in December
Santon Downham, United Kingdom
  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (2.9 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 - Santon Downham, United Kingdom
Average daylight in December /
Average sunshine in December
Santon Downham, United Kingdom
  • Average daylight in December: 7h and 5min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in December: 4h and 1min

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

Average sunshine days in December - Santon Downham, United Kingdom
Average sunshine days in December
Santon Downham, United Kingdom
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is July (9.1 days).

Average UV index in December - Santon Downham, United Kingdom
Average UV index in December
Santon Downham, United Kingdom
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December - Santon Downham, United Kingdom
Average cloud cover in December
Santon Downham, United Kingdom
  • Average cloud cover in December: 59

The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are April, August and September (Cloud cover 49).

Average visibility in December - Santon Downham, United Kingdom
Average visibility in December
Santon Downham, 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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