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
December signifies a gentle decline in Hällevik's average high-temperature, easing from a frosty 7.8°C (46°F) in November to a cold 4.5°C (40.1°F). December witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 2.1°C (35.8°F).Humidity
In December, the average relative humidity is 84%.Rainfall
In Hällevik, in December, it is raining for 13.9 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 139.4 rainfall days, and 346mm (13.62") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 5.4 days. Throughout December, 33mm (1.3") of snow is accumulated. In Hällevik, during the entire year, snow falls for 30 days and aggregates up to 138mm (5.43") of snow.Daylight
With an average of 7h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:08 and sunset at 15:31. On the last day of December, sunrise is at 08:32 and sunset at 15:36 CET.
Sunshine
December has the least sunshine of the year, with an average of 3.1h of sunshine.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days 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?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the UV index intensity in December?
Average temperature in December
Hällevik, Sweden
- Average high temperature in December: 4.5°C
The warmest month (with the highest average high temperature) is August (19.6°C).
The month with the lowest average high temperature is February (2.4°C).
- Average low temperature in December: 2.1°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).
Average pressure in December
Hällevik, Sweden
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).
Average wind speed in December
Hällevik, Sweden
- Average wind speed in December: 25.6km/h
The windiest month (with the highest average wind speed) is December (25.6km/h).
The calmest month (with the lowest average wind speed) is June (18.3km/h).
Average humidity in December
Hällevik, Sweden
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May and June (76%).
Average rainfall in December
Hällevik, Sweden
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in December
Hällevik, Sweden
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is November (15.2 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Hällevik, Sweden
- Average snowfall in December: 33mm
The month with the highest snowfall is February (44mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Hällevik, Sweden
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hällevik, Sweden
- Average daylight in December: 7h and 1min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in December: 3h and 1min
The months with the most sunshine are June and August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in December
Hällevik, Sweden
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is April (18.6 days).
The month with the least sunshine days is December (9.8 days).
Average UV index in December
Hällevik, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Hällevik, Sweden
- Average cloud cover in December: 69
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Hällevik, Sweden
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
