When summer comes, in Longyearbyen, the sun never sets, experiencing the 'Midnight Sun' phenomenon where it stays above the horizon 24 hours a day. The sun remains visible around the clock, blurring the distinction between day and night.
The temperature will range from 2° to 9° Celsius from April to August, and they will have sun all day. Midnight sun, also known as polar day, is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when the Sun remains visible at the local midnight.
This opposite phenomenon, polar night, occurs in winter, when the Sun stays below the horizon throughout the day. People tend to sleep less in summer because the sun keeps them shining most of the day, making them enjoy life a bit more.