December weather forecast
Upernavik, Greenland

In December, Upernavik plunges back into the heart of winter. The temperature descends further from November, signaling the second coldest month of the year. Daylight literally disappears and Upernavik endures an entire month of Polar Night, making outdoor activities extremely challenging. A noticeable decrease in rainfall renders the prevailing coldness even prescer. As the year in Upernavik concludes, the city wraps itself in a serene, snowy cocoon, awaiting the slow ascent towards warmer months.

Temperature

With the commencement of December, Upernavik records a moderate temperature decline, with the average high easing from November's subzero cold -6.5°C (20.3°F) to an extremely cold -11.2°C (11.8°F). In Upernavik, the December nights are characterized by an average low-temperature of -16.1°C (3°F), a minor dip from daytime readings.

Rainfall

In December, in Upernavik, the rain falls for 13 days. Throughout December, 20mm (0.79") of precipitation is accumulated. In Upernavik, during the entire year, the rain falls for 113 days and collects up to 251mm (9.88") of precipitation.

Sea temperature

In Upernavik, in December, the average water temperature is -1.1°C (30°F).
Note: During swimming, this scenario is excessively cold, hazardous, and can lead to fatality. Hypothermia ensues swiftly without suitable insulated waterproof wear.

Daylight

The months with the shortest days in Upernavik are June, July and December, with an average of 0h and 0min of daylight.

Sunshine

The months with the least sunshine are January, November and December, with an average of 0h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 0, are months with the lowest UV index in Upernavik. 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 typical high UV index of 0 in December suggests the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.