December weather forecastYtterbyn, Sweden
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Ytterbyn, Sweden, with an average temperature fluctuating between -2.7°C (27.1°F) and -6.5°C (20.3°F).Temperature
December reveals a small adjustment in temperature, transitioning from an average high of a cold 0.6°C (33.1°F) in November to a subzero cold -2.7°C (27.1°F). Ytterbyn's nocturnal December readings average at a still freezing cold -6.5°C (20.3°F), showing little variation from the daytime temperatures.Humidity
The average relative humidity in December is 91%.Rainfall
The month with the most rainfall is December, when the rain falls for 6 days and typically aggregates up to 51mm (2.01") of precipitation.Snowfall
January through June, September through December are months with snowfall. In Ytterbyn, during December, snow falls for 17.8 days and regularly aggregates up to 229mm (9.02") of snow. In Ytterbyn, during the entire year, snow falls for 96.5 days and aggregates up to 1080mm (42.52") of snow.Daylight
The month with the shortest days in Ytterbyn is December, with an average of 3h and 18min of daylight.On the first day of the month, sunrise is at 09:11 and sunset at 13:21. On the last day of December, sunrise is at 09:50 and sunset at 13:10 CET.
Sunshine
With an average of 1.3h of sunshine, December has the least sunshine of the year.UV index
January, March and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in December translates into this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ytterbyn, Sweden
- Average high temperature in December: -2.7°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in December: -6.5°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in December
Ytterbyn, Sweden
- Average pressure in December: 1004.8mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in December
Ytterbyn, Sweden
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in December
Ytterbyn, Sweden
- Average humidity in December: 91%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is June (68%).
Average rainfall in December
Ytterbyn, Sweden
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Ytterbyn, Sweden
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Ytterbyn, Sweden
- Average snowfall in December: 229mm
The month with the highest snowfall is March (231mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Ytterbyn, Sweden
- Average snowfall days in December: 17.8 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Ytterbyn, Sweden
- Average daylight in December: 3h and 18min
The month with the longest days is July (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in December: 1h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in December
Ytterbyn, Sweden
- Average sunshine days in December: 10.6 days
The months with the most sunshine days are June and August (16.3 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in December
Ytterbyn, Sweden
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in December
Ytterbyn, Sweden
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Ytterbyn, Sweden
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).
