December weather forecastBrno, Czech Republic

December

Weather in December

December concludes the year with full-fledged winter setting in across Brno. The weather contrasts notably with that of November, with lower temperatures, decreased daylight hours, and increased snowfall. Heavier snowfall measuring 30mm (1.18") becomes a common sight, adding to the winter wonderland charm. The end of the year in Brno entails short days, cold temperatures, and plenty of indoor activities to withstand the chilly days. December ushers in the holiday spirit, amplified by the temperatures plunging and the snowfall increasing, crafting a quintessential winter setting.

Temperature

December in Brno involves a decrease in temperature, down from a chilly 8.2°C (46.8°F) in November to a cold 2.4°C (36.3°F). In Brno, the month of December brings a consistent average low-temperature of -1.9°C (28.6°F), slightly cooler than its daytime highs.

Humidity

In December, the average relative humidity is 86%.

Rainfall

In December, the rain falls for 9.5 days. Throughout December, 18mm (0.71") of precipitation is accumulated. In Brno, during the entire year, the rain falls for 115.7 days and collects up to 251mm (9.88") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In December, in Brno, it is snowing for 5.9 days. Throughout December, 30mm (1.18") of snow is accumulated. Throughout the year, in Brno, there are 26.6 snowfall days, and 153mm (6.02") of snow is accumulated.

Daylight

The month with the shortest days in Brno is December, with an average of 8h and 18min of daylight.
On the first day of December, sunrise is at 07:27 and sunset at 15:58. On the last day of the month, sunrise is at 07:48 and sunset at 16:05 CET.

Sunshine

The average sunshine in December is 4.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Brno, 2.4°C (36.3°F) is the average high-temperature and -1.9°C (28.6°F) is the average low-temperature during December.

In Brno, Czech Republic, the average relative humidity in December is 86%.

In December, in Brno, the rain falls for 9.5 days. Throughout December, 18mm (0.71") of precipitation is accumulated.

In Brno, Czech Republic, in December, snow falls for 5.9 days, with typically accumulated 30mm (1.18") of snow.

The month with the shortest days is December, with an average of 8h and 18min of daylight.

In December, the average day length is 8h and 17min.

In December, on the first day of the month, sunrise is at 07:27 and sunset at 15:58. On the last day of the month, in Brno, sunrise is at 07:48 and sunset at 16:05 CET.

In December, the average sunshine duration is 4.1h.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

8.2°C

2.4°C

0.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.9km/h

12.9km/h

12.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

16.1

15.2

15.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Brno, Czech Republic

Average high temperature in December: 2.4°C

The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (0.5°C).

Average low temperature in December: -1.9°C

The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in December
Brno, Czech Republic

Average pressure in December: 1019.6mbar

The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is June (1015mbar).

Average wind speed in December
Brno, Czech Republic

Average wind speed in December: 11.7km/h

The windiest month (with the highest average wind speed) is March (13.7km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).

Average humidity in December
Brno, Czech Republic

Average humidity in December: 86%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (65%).

Average rainfall in December
Brno, Czech Republic

Average rainfall in December: 18mm

The wettest month (with the highest rainfall) is May (41mm).
The driest months (with the least rainfall) are February and April (13mm).

Average rainfall days in December
Brno, Czech Republic

Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in December
Brno, Czech Republic

Average snowfall in December: 30mm

The month with the highest snowfall is January (74mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Brno, Czech Republic

Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Brno, Czech Republic

Average daylight in December: 8h and 18min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).

Average sunshine in December: 4h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

Average sunshine days in December
Brno, Czech Republic

Average sunshine days in December: 15.2 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (14.3 days).

Average UV index in December
Brno, Czech Republic

Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).