Skip to main content

Ad

nature-iconNaturenature-iconplanet earth
clock-iconPUBLISHEDFebruary 1, 2025
share42

In Earth's Extremes, Nights Can Last For Months, Even Up To 179 Days

Not all nights are created equal.

Tom Hale headshot

Tom Hale

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture.

Senior Journalist

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture.View full profile

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture.

View full profile
EditedbyJohannes Van Zijl

Johannes holds an MSci in Neuroscience from King’s College London, where he worked on projects involving Alzheimer’s disease and Fragile X syndrome.

Aurora borealis light up the polar night in the Lofoten islands, Norway

Aurora borealis light up the polar night in the Lofoten islands, Norway.

Image credit: biletskiyevgeniy.com/Shutterstock.com


Each year in the North Pole, the Sun sets in mid-September and doesn’t return until mid-March, creating a polar night that lasts for 179 days (around six months). An equally long night occurs in the South Pole too, albeit in the “opposite” time of year during the Southern Hemisphere's winter. In fact, a bunch of different countries that are placed in extreme latitudes have incredibly long periods of darkness during the winter months. 

The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

In Utsjoki, the most northern municipality in Finland, the polar night starts at the end of November and lasts as long as 52 days until January. 

A similar schedule occurs across the border in Arctic Norway. In the North Cape, the very northern tip of the country, the sun sets around November 20 and doesn’t rise until January 22, lasting over 60 days. 

Qaanaaq in North Greenland (one of the northernmost towns in the world) the polar night lingers from October 24 to February 17. In Greenlandic, this period is Kaperlak. The annual coming of the darkness isn’t celebrated, but the first sunrise in February is always welcomed with festivities and parties.

This illustration gives a rough idea of how polar nights are created.
This illustration gives a rough idea of how polar nights are created.
Image credit: Siberian Art/Shutterstock.com

The town of Utqiaġvik in northern Alaska undergoes polar night of 60 days running from November 18 until January 22. Many towns in the northernmost stretches of the Russian Federation also have equally long polar nights that last for weeks on end.

Some of the longest periods of darkness can be found in the northernmost continuously inhabited place in the world: Alert, in the Qikiqtaaluk Region of Nunavut in Canada. Here, the polar night lasts 106 days from October 30 to February 13.

While undoubtedly relentless, polar nights aren’t completely pitch black. Some hints of sunlight can be seen for a few hours each day, turning the skies a soft blue color. This appearance of light is due to the refraction of sunlight through Earth's atmosphere, meaning it can produce hues of pink, red, orange, and other colors typically seen during sunset and sunrise.

It's truly impressive that, even with extended periods of bleak darkness, people continue to live and thrive in these extreme latitudes, adjusting to the rhythm of the polar night. As ever, life – uh – finds a way. 


Written by 

Add us as a Google preferred source to see more of our
trusted coverage in Search