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
A moderate decline in average high-temperatures is noted in December, moving from a wintry 1.5°C (34.7°F) in November to a freezing cold -2.7°C (27.1°F). In December, Iisvesi experiences a marginal drop in temperature, with averages of -5.7°C (21.7°F) at night.Humidity
The average relative humidity in December is 93%.Rainfall
In Iisvesi, during December, the rain falls for 5.2 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 106.5 rainfall days, and 384mm (15.12") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In December, it is snowing for 21.1 days. Throughout December, 216mm (8.5") of snow is accumulated. Throughout the year, there are 110.8 snowfall days, and 1074mm (42.28") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 5h and 6min of daylight.On the first day of December, sunrise is at 09:12 and sunset at 14:49. On the last day of the month, sunrise is at 09:42 and sunset at 14:47 EET.
Sunshine
December has the least sunshine of the year, with an average of 0.8h of sunshine.UV index
The months with the lowest UV index in Iisvesi are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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?
How many hours of daylight does Iisvesi 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 Iisvesi have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Iisvesi, Finland
- Average high temperature in December: -2.7°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -5.7°C
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (-9.9°C).
Average pressure in December
Iisvesi, Finland
- Average pressure in December: 1008mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in December
Iisvesi, Finland
- Average wind speed in December: 14.7km/h
The windiest month (with the highest average wind speed) is November (15km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in December
Iisvesi, Finland
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (68%).
Average rainfall in December
Iisvesi, Finland
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Iisvesi, Finland
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Iisvesi, Finland
- Average snowfall in December: 216mm
The month with the highest snowfall is January (230mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Iisvesi, Finland
- Average snowfall days in December: 21.1 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Iisvesi, Finland
- Average daylight in December: 5h and 1min
The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).
- Average sunshine in December: 0h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in December
Iisvesi, Finland
- Average sunshine days in December: 8.3 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Iisvesi, Finland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Iisvesi, Finland
- Average cloud cover in December: 81
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Iisvesi, Finland
- Average visibility in December: 7km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (5km).
