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 arrival of December is marked by a minor reduction in average high-temperature, sliding from an icy 5°C (41°F) in November to a still cold 1.5°C (34.7°F). Sundbyberg's nighttime temperature in December shows a minor descent, with a steady average of -2°C (28.4°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 88%.Rainfall
In Sundbyberg, in December, during 8.5 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Sundbyberg, during the entire year, the rain falls for 132.3 days and collects up to 302mm (11.89") of precipitation.Snowfall
Months with snowfall in Sundbyberg are January through May, October through December. In Sundbyberg, Sweden, in December, snow falls for 8.9 days, with typically accumulated 58mm (2.28") of snow. Throughout the year, in Sundbyberg, there are 48.7 snowfall days, and 270mm (10.63") of snow is accumulated.Daylight
With an average of 6h and 12min of daylight, December has the shortest days of the year in Sundbyberg, Sweden.On the first day of the month, sunrise is at 08:18 and sunset at 14:55. On the last day of December, sunrise is at 08:44 and sunset at 14:57 CET.
Sunshine
The month with the least sunshine in Sundbyberg is December, with an average of 2.5h of sunshine.UV index
In Sundbyberg, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Sundbyberg?
What is the most humid month in Sundbyberg?
What is the average humidity in December in Sundbyberg?
How many days does it rain in December in Sundbyberg?
How many days does it snow in December in Sundbyberg?
What is the month with the shortest days in Sundbyberg?
What is the average length of the day in December in Sundbyberg?
When is the sunrise / sunset in December in Sundbyberg?
What is the month with the least sunshine in Sundbyberg?
How long on average sun shines in December in Sundbyberg?
How high is the UV index in December in Sundbyberg?
Average temperature in December
Sundbyberg, Sweden
- Average high temperature in December: 1.5°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in December: -2°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).
Average pressure in December
Sundbyberg, Sweden
- Average pressure in December: 1007.8mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in December
Sundbyberg, Sweden
- Average wind speed in December: 18.3km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest months (with the lowest average wind speed) are July and August (12.4km/h).
Average humidity in December
Sundbyberg, Sweden
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Sundbyberg, Sweden
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is July (39mm).
The driest months (with the least rainfall) are January and April (14mm).
Average rainfall days in December
Sundbyberg, Sweden
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Sundbyberg, Sweden
- Average snowfall in December: 58mm
The month with the highest snowfall is February (72mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sundbyberg, Sweden
- Average snowfall days in December: 8.9 days
The month with the highest number of snowfall days is February (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sundbyberg, Sweden
- Average daylight in December: 6h and 1min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Sundbyberg, Sweden
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is April (15.1 days).
The months with the least sunshine days are February and August (12.8 days).
Average UV index in December
Sundbyberg, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Sundbyberg, Sweden
- Average cloud cover in December: 66
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Sundbyberg, Sweden
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
Sundbyberg, Sweden
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