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 sea temperature 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
Weather in December
Temperature
As December arrives, Trosa's weather displays a minor decrease in high-temperatures, transitioning from November's cold 4.9°C (40.8°F) to a still icy 1.4°C (34.5°F). December records a small disparity from daytime temperatures, marking an average low-temperature of -2.3°C (27.9°F) in Trosa.Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 89%.Rainfall
In Trosa, in December, during 10 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Trosa, during the entire year, the rain falls for 143.7 days and collects up to 387mm (15.24") of precipitation.Snowfall
Months with snowfall in Trosa are January through May, October through December. In Trosa, in December, during 11.4 snowfall days, 91mm (3.58") of snow is typically accumulated. Throughout the year, in Trosa, Sweden, there are 57.2 snowfall days, and 427mm (16.81") of snow is accumulated.Sea temperature
In Trosa, the average seawater temperature in December is 4.8°C (40.6°F).Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
Daylight
With an average of 6h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:16 and sunset at 15:01. On the last day of December, in Trosa, sunrise is at 08:42 and sunset at 15:03 CET.
Sunshine
December has the least sunshine of the year, with an average of 2.5h of sunshine.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Trosa in December?
What are the most humid months in Trosa?
What is the average humidity in December in Trosa?
How many days does it rain in December in Trosa?
How much does it snow in Trosa in December?
What is the sea temperature in December in Trosa?
What is the month with the shortest days in Trosa?
How many hours of daylight does Trosa have in December?
When are sunrise and sunset in December in Trosa?
What is the month with the least sunshine in Trosa?
How many hours of sunshine does Trosa have in December?
What is the UV index reading in December in Trosa?
Average temperature in December
Trosa, Sweden
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (-0.6°C).
- Average low temperature in December: -2.3°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average pressure in December
Trosa, Sweden
- Average pressure in December: 1008.1mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in December
Trosa, Sweden
- Average wind speed in December: 16km/h
The windiest month (with the highest average wind speed) is December (16km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in December
Trosa, Sweden
- Average humidity in December: 89%
The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Trosa, Sweden
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is October (41mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in December
Trosa, Sweden
- Average rainfall days in December: 10 days
The months with the highest number of rainy days are July and August (14.6 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Trosa, Sweden
- Average snowfall in December: 91mm
The month with the highest snowfall is January (110mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Trosa, Sweden
- Average snowfall days in December: 11.4 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Trosa, Sweden
- Average sea temperature in December: 4.8°C
The best month for swimming (with the highest average sea temperature) is August (18.7°C).
The coldest month (with the lowest average sea temperature) is February (1°C).
Average daylight in December /
Average sunshine in December
Trosa, Sweden
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Trosa, Sweden
- Average sunshine days in December: 11 days
The month with the most sunshine days is April (14.6 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Trosa, 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
Trosa, Sweden
- Average cloud cover in December: 67
The months with the most cloud cover are February and December (Cloud cover 67).
The months with the least cloud cover are June, July and August (Cloud cover 40).
Average visibility in December
Trosa, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
Trosa, Sweden
Weather forecast for your location
2. Allow the app to use your location
