December weather forecastLes Quartiers, Guernsey

December

Weather in December

The year draws to a close in Les Quartiers, Guernsey, unfolding the final chapter of the area's annual weather narrative. A sharp dip in atmospheric pressure to 1016.5mb makes the ambience unique compared to the rest of the year. The city gears up for the upcoming January, harboring similar humidity and cloud coverage. Temperature lows echo that of January, completing the cycle of weather patterns for the year. There is an increase in wind speeds, with the fastest average monthly winds of 36km/h (22.4mph), measuring gusts hitting as high as 49.8km/h (30.9mph).

Temperature

The transition into December is marked with an average high-temperature of a fresh 11.1°C (52°F), showing an insignificant shift from November's 13°C (55.4°F). Les Quartiers registers an average low-temperature of 9.2°C (48.6°F) throughout December, a modest decrease from its daytime highs.

Humidity

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

Rainfall

In Les Quartiers, Guernsey, in December, it is raining for 21.4 days, with typically 70mm (2.76") of accumulated precipitation. In Les Quartiers, during the entire year, the rain falls for 196.3 days and collects up to 557mm (21.93") of precipitation.

Snowfall

In Les Quartiers, snow does not fall in February through December.

Daylight

December has the shortest days of the year, with an average of 8h and 12min of daylight.
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 are January, November and December, with an average of 3.9h of sunshine.

UV index

The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 3 during December translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Updated: Aug 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures vary between a high-temperature of 11.1°C (52°F) and a low-temperature of 9.2°C (48.6°F).

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

In Les Quartiers, the average relative humidity in December is 77%.

In Les Quartiers, during December, the rain falls for 21.4 days and regularly aggregates up to 70mm (2.76") of precipitation.

In Les Quartiers, snow does not fall in February through December.

In Les Quartiers, in December, it doesn't snow. In January, it regularly snows.

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

In December, the average day length is 8h and 15min.

On the first day of December, 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.

In December, the average sunshine duration is 3.9h.

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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
Les Quartiers, 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).