December weather forecastHalwell, United Kingdom
December
Weather in December
The first month of the winter, December, is still a chilly month in Halwell, United Kingdom, with an average temperature varying between 6.6°C (43.9°F) and 9.7°C (49.5°F).Temperature
The onset of December marks an average high-temperature of a frosty 9.7°C (49.5°F), hardly differing from November's 11.5°C (52.7°F). Halwell documents a consistent average low-temperature of 6.6°C (43.9°F) at night during December.Humidity
The average relative humidity in December is 83%.Rainfall
In Halwell, during December, the rain falls for 16.9 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, in Halwell, there are 199.6 rainfall days, and 604mm (23.78") of precipitation is accumulated.Snowfall
January, February, November and December are months with snowfall in Halwell. In Halwell, in December, snow falls for 0.6 days, with typically accumulated 2mm (0.08") of snow. In Halwell, during the entire year, snow falls for 3.1 days and aggregates up to 16mm (0.63") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 6min of daylight.On the first day of December in Halwell, sunrise is at 7:53 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 4:21 pm GMT.
Sunshine
In December, the average sunshine in Halwell, United Kingdom, is 4.4h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Halwell. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Halwell, United Kingdom
- Average high temperature in December: 9.7°C
The warmest month (with the highest average high temperature) is July (18.5°C).
The month with the lowest average high temperature is February (8.5°C).
- Average low temperature in December: 6.6°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5.2°C).
Average pressure in December
Halwell, United Kingdom
- Average pressure in December: 1015mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in December
Halwell, United Kingdom
- Average wind speed in December: 26.3km/h
The windiest month (with the highest average wind speed) is December (26.3km/h).
The calmest month (with the lowest average wind speed) is July (16.9km/h).
Average humidity in December
Halwell, United Kingdom
- Average humidity in December: 83%
The months with the highest relative humidity are June and October (84%).
The months with the lowest relative humidity are February, March and April (82%).
Average rainfall in December
Halwell, United Kingdom
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is May (32mm).
Average rainfall days in December
Halwell, United Kingdom
- Average rainfall days in December: 16.9 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (14.5 days).
Average snowfall in December
Halwell, United Kingdom
- Average snowfall in December: 2mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Halwell, United Kingdom
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (1.1 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
Halwell, United Kingdom
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 8h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 12min).
Average sunshine days in December
Halwell, United Kingdom
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is April (11.8 days).
The months with the least sunshine days are August and November (8 days).
Average UV index in December
Halwell, 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 and December (UV index 2).
Average cloud cover in December
Halwell, United Kingdom
- Average cloud cover in December: 57
The month with the most cloud cover is November (Cloud cover 58).
The month with the least cloud cover is April (Cloud cover 43).
Average visibility in December
Halwell, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are February, April, June, July, September and November (10km).
The months with the lowest visibility are January, March, May, August, October and December (9km).
