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
In the transition from November to December, Saltvik reports an average high-temperature of a wintry 3.5°C (38.3°F), indicating a close resemblance to the prior month. Recording a slight decline in temperature during the nights, Saltvik's December temperatures average at 1.3°C (34.3°F).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 8.8 days. Throughout December, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 116.3 rainfall days, and 274mm (10.79") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Saltvik, in December, snow falls for 7.5 days, with typically accumulated 35mm (1.38") of snow. Throughout the year, there are 40.1 snowfall days, and 160mm (6.3") of snow is accumulated.Daylight
With an average of 6h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:17 and sunset at 15:40. On the last day of December, sunrise is at 09:44 and sunset at 15:41 EET.
Sunshine
The months with the least sunshine are January and December, with an average of 2.2h of sunshine.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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 in Saltvik?
How many hours of daylight does Saltvik have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Saltvik have in December?
How high is the UV index in December?
Average temperature in December
Saltvik, Finland
- Average high temperature in December: 3.5°C
The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (0.5°C).
- Average low temperature in December: 1.3°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (-1.5°C).
Average pressure in December
Saltvik, Finland
- Average pressure in December: 1007.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.4mbar).
Average wind speed in December
Saltvik, Finland
- Average wind speed in December: 31.7km/h
The windiest month (with the highest average wind speed) is December (31.7km/h).
The calmest month (with the lowest average wind speed) is July (20km/h).
Average humidity in December
Saltvik, Finland
- Average humidity in December: 81%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and October (78%).
Average rainfall in December
Saltvik, Finland
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is October (32mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in December
Saltvik, Finland
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is August (14.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Saltvik, Finland
- Average snowfall in December: 35mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Saltvik, Finland
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saltvik, Finland
- 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 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 2h and 12min).
Average sunshine days in December
Saltvik, Finland
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is May (20.5 days).
The month with the least sunshine days is December (11.1 days).
Average UV index in December
Saltvik, Finland
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and March (UV index 1).
Average cloud cover in December
Saltvik, Finland
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Saltvik, Finland
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
