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 transition into December involves a small decrease in the average high-temperature, dipping slightly from a frosty 9.5°C (49.1°F) in November to a cold 5.7°C (42.3°F). Swier records a mild decrease in temperature during the nights of December, averaging a still icy 1.9°C (35.4°F).Humidity
January and December, with an average relative humidity of 87%, are the most humid months in Swier.Rainfall
December is the month with the most rainfall in Swier. Rain falls for 16 days and accumulates 51mm (2.01") of precipitation.Snowfall
January through March, November and December are months with snowfall in Swier, Netherlands. In December, in Swier, it is snowing for 3.9 days. Throughout December, 39mm (1.54") of snow is accumulated. Throughout the year, there are 19.8 snowfall days, and 147mm (5.79") of snow is accumulated.Daylight
With an average of 8h and 0min of daylight, December has the shortest days of the year.On the first day of December in Swier, sunrise is at 08:17 and sunset at 16:33. On the last day of the month, sunrise is at 08:38 and sunset at 16:40 CET.
Sunshine
The month with the least sunshine in Swier, Netherlands, is December, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index in Swier, Netherlands, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Swier during December?
What is the most humid month in Swier?
What is the average humidity in December in Swier?
What is the rainiest month in Swier?
How many days does it rain in December in Swier?
How much does it snow in Swier in December?
What is the month with the shortest days in Swier?
What is the average length of the day in December in Swier?
When are sunrise and sunset in December in Swier?
What is the month with the least sunshine in Swier?
How many hours of sunshine does Swier have in December?
When is the lowest UV index in Swier?
What is the UV index intensity in December in Swier?
Average temperature in December
Swier, Netherlands
- Average high temperature in December: 5.7°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in December: 1.9°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).
Average pressure in December
Swier, Netherlands
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in December
Swier, Netherlands
- Average wind speed in December: 17.6km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in December
Swier, Netherlands
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Swier, Netherlands
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
Swier, Netherlands
- Average rainfall days in December: 16 days
The months with the highest number of rainy days are May and July (18 days).
The months with the least rainy days are February, September and October (12.6 days).
Average snowfall in December
Swier, Netherlands
- Average snowfall in December: 39mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Swier, Netherlands
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Swier, Netherlands
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Swier, Netherlands
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Swier, Netherlands
- Average UV index in December: 2
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 2).
Average cloud cover in December
Swier, Netherlands
- Average cloud cover in December: 63
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Swier, Netherlands
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
