December weather forecastGruna, Czech Republic
December
Weather in December
The first month of the winter, December, is also an icy month in Gruna, Czech Republic, with an average temperature fluctuating between -2.8°C (27°F) and 1.2°C (34.2°F).Temperature
The beginning of December marks a decrease in the average high-temperature, transitioning from a frosty 6.7°C (44.1°F) in November to a cold 1.2°C (34.2°F). Gruna registers a subtle dip to an average of -2.8°C (27°F) during the nights of December.Humidity
The average relative humidity in December is 89%.Rainfall
In Gruna, Czech Republic, in December, during 12.6 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, there are 168.2 rainfall days, and 519mm (20.43") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Gruna, in December, during 13.7 snowfall days, 96mm (3.78") of snow is typically accumulated. In Gruna, during the entire year, snow falls for 64.2 days and aggregates up to 521mm (20.51") of snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Gruna.On the first day of the month, sunrise is at 07:29 and sunset at 15:55. On the last day of December, sunrise is at 07:50 and sunset at 16:02 CET.
Sunshine
In December, the average sunshine is 3.9h.UV index
In December, the average daily maximum UV index 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 ordinary person.Note: The UV index of 2 during December leads to these advisories:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gruna, Czech Republic
- Average high temperature in December: 1.2°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in December: -2.8°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in December
Gruna, Czech Republic
- Average pressure in December: 1018.9mbar
The month with the highest atmospheric pressure is December (1018.9mbar).
The month with the lowest atmospheric pressure is July (1015mbar).
Average wind speed in December
Gruna, Czech Republic
- Average wind speed in December: 12.5km/h
The windiest months (with the highest average wind speed) are February and March (13km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in December
Gruna, Czech Republic
- Average humidity in December: 89%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Gruna, Czech Republic
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is July (77mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in December
Gruna, Czech Republic
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Gruna, Czech Republic
- Average snowfall in December: 96mm
The month with the highest snowfall is January (174mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Gruna, Czech Republic
- Average snowfall days in December: 13.7 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gruna, Czech Republic
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Gruna, Czech Republic
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in December
Gruna, Czech Republic
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Gruna, Czech Republic
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Gruna, Czech Republic
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
