Antarctic Circle Apr 2026

The sun remains below the horizon at noon. Geography and Climate

The primary significance of the Antarctic Circle is astronomical. It marks the northernmost latitude in the Southern Hemisphere where the sun can stay above the horizon for a full 24 hours—a phenomenon known as the . Conversely, during the winter solstice, it is the northernmost point where the sun does not rise at all, resulting in Polar Night . antarctic circle

Unlike its northern counterpart, the Arctic Circle, which encompasses parts of eight countries, the Antarctic Circle crosses almost no permanent human settlements. It largely encircles the continent of , an icy landmass covered by a massive ice sheet that holds about 70% of the world's fresh water. The region is characterized by extreme conditions: Antarctica - National Geographic Education The sun remains below the horizon at noon