December weather forecast
Moscow, Russia

December brings Moscow into the full swing of winter, marked by colder temperatures and longer nights. As daylight hours shrink further to average about 7.1 hours a day, the city embraces the season with winter markets, ice-skating rinks, and festive illuminations. The temperatures plummet to a chilling average high of -3°C (26.6°F) and a harsh low of -7.6°C (18.3°F), making December one of the coldest months of the year. Amidst the cold and snow, the city dazzles resplendently as it rings in the holiday season with vibrancy and warmth in the heart of winter.

Temperature

December's onset in Moscow brings a negligible change in high-temperatures, falling from an icy 0.9°C (33.6°F) in November to a subzero cold -3°C (26.6°F). December introduces a small decrease to a nighttime average of -7.6°C (18.3°F).

Humidity

With an average relative humidity of 85%, December is the most humid month.

Rainfall

In Moscow, in December, it is raining for 2 days, with typically 52mm (2.05") of accumulated precipitation. Throughout the year, there are 105.5 rainfall days, and 707mm (27.83") of precipitation is accumulated.

Snowfall

Months with snowfall in Moscow are January through May, September through December. In December, snow falls for 17 days. In Moscow, during the entire year, snow falls for 72.2 days.

Daylight

December has the shortest days of the year, with an average of 7h and 6min of daylight.
On the first day of the month, sunrise is at 08:35 and sunset at 16:01. On the last day of December, in Moscow, Russia, sunrise is at 08:59 and sunset at 16:06 MSK.

Sunshine

With an average of 0.6h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index in Moscow are January and December, with an average maximum UV index of 0. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 0 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. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.