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
December
Weather in December
Temperature
As Bromma enters December, the average high-temperature subtly lowers from the 5°C of November to a still icy 1.5°C. Bromma's nights in December maintain a consistent average of -1.9°C, demonstrating a minimal differential from its daytime temperature.Humidity
The months with the highest humidity in Bromma are January and December, with an average relative humidity of 88%.Rainfall
In Bromma, in December, it is raining for 9 days, with typically 25mm of accumulated precipitation. In Bromma, during the entire year, the rain falls for 133 days and collects up to 295mm of precipitation.Snowfall
Months with snowfall in Bromma are January through May, October through December. In Bromma, during December, snow falls for 9.5 days and regularly aggregates up to 56mm of snow. Throughout the year, in Bromma, there are 49.2 snowfall days, and 269mm of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 12min of daylight.On the first day of December in Bromma, sunrise is at 08:18 and sunset at 14:56. On the last day of the month, sunrise is at 08:44 and sunset at 14:58 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.5h of sunshine.UV index
In Bromma, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Bromma in December?
What are the most humid months in Bromma?
What is the average humidity in December in Bromma?
How much does it rain in Bromma in December?
How much does it snow in Bromma in December?
What is the month with the shortest days in Bromma?
What is the average length of the day in December in Bromma?
When are sunrise and sunset in December in Bromma?
What is the month with the least sunshine in Bromma?
How long on average sun shines in December in Bromma?
What is the UV index intensity in December in Bromma?
Average temperature in December
Bromma, 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 (-0.3°C).
- Average low temperature in December: -1.9°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 (-3.5°C).
Average pressure in December
Bromma, 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
Bromma, Sweden
- Average wind speed in December: 18.4km/h
The windiest month (with the highest average wind speed) is December (18.4km/h).
The calmest months (with the lowest average wind speed) are July and August (12.5km/h).
Average humidity in December
Bromma, 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
Bromma, Sweden
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in December
Bromma, Sweden
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Bromma, Sweden
- Average snowfall in December: 56mm
The month with the highest snowfall is February (76mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Bromma, Sweden
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bromma, 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
Bromma, Sweden
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is May (15.8 days).
The months with the least sunshine days are February and August (12.8 days).
Average UV index in December
Bromma, 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
Bromma, Sweden
- Average cloud cover in December: 66
The months with the most cloud cover are January, February and December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Bromma, 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).
