December weather forecast
Český Krumlov, Czech Republic

December marks the arrival of full-blown winter in Český Krumlov, with noticeable reduction across all parameters except rainfall. The daylight hours draw in at just 8.4 hours, and the UV index drops to its lowest level of 1. The juxtaposition of decreased daylight hours and a surge to 53mm (2.09") of rain sustained over 16 days creates a distinctive winter atmosphere. The temperature plunges into the negatives, fluctuating from -4°C (24.8°F) to 1°C (33.8°F). As the year concludes, December offers a chilling yet festive mood, encompassing snowy landscapes and Christmas celebrations in Český Krumlov.

Temperature

With the commencement of December, Český Krumlov records a moderate temperature decline, with the average high easing from November's wintry 5°C (41°F) to a still cold 1°C (33.8°F). In Český Krumlov, nights during December observe an average temperature decrease to a freezing cold -4°C (24.8°F).

Rainfall

In Český Krumlov, Czech Republic, during December, the rain falls for 16 days and regularly aggregates up to 53mm (2.09") of precipitation. In Český Krumlov, during the entire year, the rain falls for 174 days and collects up to 795mm (31.3") of precipitation.

Daylight

December has the shortest days of the year, with an average of 8h and 18min of daylight.
On the first day of December in Český Krumlov, sunrise is at 07:35 and sunset at 16:08. On the last day of the month, sunrise is at 07:55 and sunset at 16:16 CET.

Sunshine

The months with the least sunshine in Český Krumlov are January, November and December, with an average of 2h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.