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 brings a slight decrease in temperature, down from a chilly 7°C (44.6°F) in November to a wintry 2.3°C (36.1°F). Consistently, Tleń reports average nighttime temperatures of -1.1°C (30°F) during December, a marginal step down from its daytime highs.Humidity
In Tleń, the average relative humidity in December is 88%.Rainfall
In Tleń, during December, the rain falls for 12 days and regularly aggregates up to 32mm (1.26") of precipitation. In Tleń, during the entire year, the rain falls for 141.7 days and collects up to 351mm (13.82") of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Tleń, during December, snow falls for 8 days and regularly aggregates up to 48mm (1.89") of snow. In Tleń, during the entire year, snow falls for 40.7 days and aggregates up to 242mm (9.53") of snow.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year in Tleń.On the first day of December, sunrise is at 07:41 and sunset at 15:31. On the last day of the month, sunrise is at 08:03 and sunset at 15:36 CET.
Sunshine
In December, the average sunshine is 3.1h.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 exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Tleń?
What is the average humidity in December in Tleń?
How much does it rain in Tleń in December?
How much does it snow in Tleń in December?
What is the month with the shortest days in Tleń?
What is the average length of the day in December in Tleń?
What time are sunrise and sunset in December in Tleń?
How many hours of sunshine does Tleń have in December?
What is the UV index intensity in December in Tleń?
Average temperature in December
Tleń, Poland
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in December: -1.1°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in December
Tleń, Poland
- Average pressure in December: 1014.5mbar
The month with the highest atmospheric pressure is October (1017.2mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in December
Tleń, Poland
- Average wind speed in December: 14.4km/h
The windiest month (with the highest average wind speed) is December (14.4km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in December
Tleń, Poland
- Average humidity in December: 88%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and August (68%).
Average rainfall in December
Tleń, Poland
- Average rainfall in December: 32mm
The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Tleń, Poland
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (9.3 days).
Average snowfall in December
Tleń, Poland
- Average snowfall in December: 48mm
The month with the highest snowfall is January (87mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Tleń, Poland
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tleń, Poland
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Tleń, Poland
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in December
Tleń, Poland
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in December
Tleń, Poland
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Tleń, Poland
- Average visibility in December: 8km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).
