December weather forecastSaint Sampson, Guernsey

December

Weather in December

The year wraps up with December bringing along the winter chill in Saint Sampson. Unlike the gradual decline of temperatures over the autumn months, December exhibits quicker temperature dives that go from 9.2°C (48.6°F) up to 11.1°C (52°F). This month is characterized by an incremented amount of rainfall, reaching a total of 70mm (2.76"). The sun shines the least in December, with daylight hours dropping to 8.3 hours. Though the month ends on a blustery note, the locals find solace in the cozy warmth of their homes and the festive celebration of Christmas.

Temperature

The high-temperature average in December for Saint Sampson is a fresh 11.1°C (52°F), staying closely aligned with November's conditions. Saint Sampson in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 9.2°C (48.6°F).

Humidity

November and December, with an average relative humidity of 77%, are the least humid months.

Rainfall

In December, the rain falls for 21.4 days. Throughout December, 70mm (2.76") of precipitation is accumulated. In Saint Sampson, during the entire year, the rain falls for 196.3 days and collects up to 557mm (21.93") of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

With an average of 8h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:45 and sunset at 16:13. On the last day of December, sunrise is at 08:06 and sunset at 16:20 GMT.

Sunshine

The months with the least sunshine in Saint Sampson are January, November and December, with an average of 3.9h of sunshine.

UV index

In December, the average daily maximum UV index in Saint Sampson, Guernsey, is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 3 in December transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Saint Sampson, the average high-temperature is 11.1°C (52°F), and the average low-temperature is 9.2°C (48.6°F).

The months with the lowest humidity are November and December, with an average relative humidity of 77%.

In December, the average relative humidity in Saint Sampson is 77%.

In December, in Saint Sampson, the rain falls for 21.4 days. Throughout December, 70mm (2.76") of precipitation is accumulated.

February through December are months without snowfall.

In Saint Sampson, in December, it doesn't snow. In January, it regularly snows.

December has the shortest days of the year in Saint Sampson, with an average of 8h and 12min of daylight.

In Saint Sampson, Guernsey, the average day length in December is 8h and 14min.

On the first day of December in Saint Sampson, sunrise is at 07:45 and sunset at 16:13. On the last day of the month, sunrise is at 08:06 and sunset at 16:20 GMT.

The months with the least sunshine are January, November and December, with an average of 3.9h of sunshine.

The average sunshine duration in December is 3.9h.

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

13°C

11.1°C

9.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

36.8km/h

37.8km/h

35.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

5.3

5.5

Average UV index

Average cloud cover

63%

62%

Average visibility

10km

Average temperature in December
Saint Sampson, Guernsey

Average high temperature in December: 11.1°C

The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).

Average low temperature in December: 9.2°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).

Average pressure in December
Saint Sampson, Guernsey

Average pressure in December: 1016.5mbar

The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

Average wind speed in December
Saint Sampson, Guernsey

Average wind speed in December: 36km/h

The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).

Average humidity in December
Saint Sampson, Guernsey

Average humidity in December: 77%

The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).

Average rainfall in December
Saint Sampson, Guernsey

Average rainfall in December: 70mm

The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).

Average rainfall days in December
Saint Sampson, Guernsey

Average rainfall days in December: 21.4 days

The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).

Average snowfall in December
Saint Sampson, Guernsey

Average snowfall in December: 0mm

The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Saint Sampson, Guernsey

Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Saint Sampson, Guernsey

Average daylight in December: 8h and 12min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).

Average sunshine in December: 3h and 54min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).

Average sunshine days in December
Saint Sampson, Guernsey

Average sunshine days in December: 5.3 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).

Average UV index in December
Saint Sampson, Guernsey

Average UV index in December: 3

The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).

Average cloud cover in December
Saint Sampson, Guernsey

Average cloud cover in December: 63

The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Saint Sampson, Guernsey

Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).