Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The shift from November to December is characterized by an average high-temperature of a wintry 5.9°C (42.6°F), not significantly different from the 8.4°C (47.1°F) of November. Nighttime temperature reflects an average dip to a still cold 2°C (35.6°F) in December, subtly cooler than its daytime highs.Humidity
December is the most humid month in Swettenham, with an average relative humidity of 92%.Rainfall
In Swettenham, during December, the rain falls for 16.9 days and regularly aggregates up to 59mm (2.32") of precipitation. Throughout the year, in Swettenham, United Kingdom, there are 196.9 rainfall days, and 619mm (24.37") of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Swettenham. In Swettenham, in December, during 3.1 snowfall days, 25mm (0.98") of snow is typically accumulated. In Swettenham, during the entire year, snow falls for 18.6 days and aggregates up to 174mm (6.85") of snow.Daylight
The month with the shortest days in Swettenham is December, with an average of 7h and 36min of daylight.On the first day of December in Swettenham, sunrise is at 8:01 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 8:23 am and sunset at 4:01 pm GMT.
Sunshine
In Swettenham, the average sunshine in December is 3.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Swettenham, United Kingdom. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
Is it cold in Swettenham during December?
What is the most humid month in Swettenham?
What is the average humidity in December in Swettenham?
How many days does it rain in December in Swettenham?
How much does it snow in Swettenham in December?
What is the month with the shortest days in Swettenham?
How many hours of daylight does Swettenham have in December?
When are sunrise and sunset in December in Swettenham?
How many hours of sunshine does Swettenham have in December?
What are the months with the lowest UV index in Swettenham?
How high is the UV index in December in Swettenham?
Average temperature in December
Swettenham, United Kingdom
- Average high temperature in December: 5.9°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in December: 2°C
The month with the highest average low temperature is August (11.1°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in December
Swettenham, United Kingdom
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in December
Swettenham, United Kingdom
- Average wind speed in December: 18.1km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in December
Swettenham, United Kingdom
- Average humidity in December: 92%
The month with the highest relative humidity is December (92%).
The month with the lowest relative humidity is May (82%).
Average rainfall in December
Swettenham, United Kingdom
- Average rainfall in December: 59mm
The wettest months (with the highest rainfall) are August and November (65mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in December
Swettenham, United Kingdom
- Average rainfall days in December: 16.9 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is February (13.1 days).
Average snowfall in December
Swettenham, United Kingdom
- Average snowfall in December: 25mm
The month with the highest snowfall is February (49mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Swettenham, United Kingdom
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Swettenham, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 3h and 4min
The months with the most sunshine are April and May (Average sunshine: 6h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Swettenham, United Kingdom
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is March (12.8 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in December
Swettenham, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Swettenham, United Kingdom
- Average cloud cover in December: 66
The months with the most cloud cover are January and November (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in December
Swettenham, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are March and May (9km).
The months with the lowest visibility are January, February, April, June, July, August, September, October, November and December (8km).
Swettenham, United Kingdom
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