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
The shift from November to December coincides with a small decrease in the average high-temperature, down to a subzero cold -1.9°C (28.6°F) from an icy 1.2°C (34.2°F). The month of December is marked by an average minimum temperature of -5.1°C (22.8°F), slightly cooler than its daytime counterpart.Humidity
In Ostvik, the average relative humidity in December is 89%.Rainfall
In Ostvik, during December, the rain falls for 6.5 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, there are 99.9 rainfall days, and 252mm (9.92") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Ostvik, in December, during 13.5 snowfall days, 98mm (3.86") of snow is typically accumulated. In Ostvik, during the entire year, snow falls for 77.3 days and aggregates up to 575mm (22.64") of snow.Daylight
With an average of 4h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 09:05 and sunset at 13:44. On the last day of the month, sunrise is at 09:40 and sunset at 13:37 CET.
Sunshine
December has the least sunshine of the year, with an average of 1.4h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 1 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. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Ostvik have in December?
What is the month with the lowest UV index in Ostvik?
What is the UV index reading in December?
Average temperature in December
Ostvik, Sweden
- Average high temperature in December: -1.9°C
The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in December: -5.1°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is February (-9.3°C).
Average pressure in December
Ostvik, Sweden
- Average pressure in December: 1005mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1005mbar).
Average wind speed in December
Ostvik, Sweden
- Average wind speed in December: 14.6km/h
The windiest month (with the highest average wind speed) is December (14.6km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).
Average humidity in December
Ostvik, Sweden
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is June (65%).
Average rainfall in December
Ostvik, Sweden
- Average rainfall in December: 22mm
The wettest month (with the highest rainfall) is July (30mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in December
Ostvik, Sweden
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (11.9 days).
The month with the least rainy days is January (3 days).
Average snowfall in December
Ostvik, Sweden
- Average snowfall in December: 98mm
The months with the highest snowfall are January and March (107mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ostvik, Sweden
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Ostvik, Sweden
- Average daylight in December: 4h and 0min
The month with the longest days is June (Average daylight: 21h and 30min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in December: 1h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in December
Ostvik, Sweden
- Average sunshine days in December: 12.9 days
The months with the most sunshine days are June and October (17.8 days).
The month with the least sunshine days is December (12.9 days).
Average UV index in December
Ostvik, Sweden
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Ostvik, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Ostvik, Sweden
- Average visibility in December: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (7km).
