December weather forecastHarbo, Sweden
December
Weather in December
The first month of the winter, December, is also a wintry month in Harbo, Sweden, with an average temperature varying between -3.5°C (25.7°F) and 0.1°C (32.2°F).Temperature
With the beginning of December, the average high-temperature shows a small decrease, transitioning from an icy 4.1°C (39.4°F) in November to a still cold 0.1°C (32.2°F). A minor drop in temperature is observed from daytime highs during the nights of December, averaging a subzero cold -3.5°C (25.7°F).Humidity
The average relative humidity in December is 90%.Rainfall
In Harbo, Sweden, in December, during 7.7 rainfall days, 30mm (1.18") of precipitation is typically accumulated. In Harbo, Sweden, during the entire year, the rain falls for 138.7 days and collects up to 389mm (15.31") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Harbo, during December, snow falls for 11.1 days and regularly aggregates up to 110mm (4.33") of snow. Throughout the year, in Harbo, there are 58.6 snowfall days, and 587mm (23.11") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 6h and 0min of daylight.On the first day of the month, sunrise is at 08:27 and sunset at 14:52. On the last day of December, in Harbo, sunrise is at 08:54 and sunset at 14:54 CET.
Sunshine
With an average of 2.3h of sunshine, December has the least sunshine of the year.UV index
In December, the average daily maximum UV index in Harbo, Sweden, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Harbo, Sweden
- Average high temperature in December: 0.1°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in December: -3.5°C
The month with the highest average low temperature is July (12.2°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).
Average pressure in December
Harbo, Sweden
- Average pressure in December: 1007.4mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.4mbar).
Average wind speed in December
Harbo, Sweden
- Average wind speed in December: 12.4km/h
The windiest month (with the highest average wind speed) is December (12.4km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in December
Harbo, Sweden
- Average humidity in December: 90%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Harbo, Sweden
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Harbo, Sweden
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in December
Harbo, Sweden
- Average snowfall in December: 110mm
The month with the highest snowfall is January (133mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Harbo, Sweden
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harbo, Sweden
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 2h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in December
Harbo, Sweden
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Harbo, 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, February and November (UV index 1).
Average cloud cover in December
Harbo, Sweden
- Average cloud cover in December: 67
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 44).
Average visibility in December
Harbo, Sweden
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February, March, November and December (7km).
