The 63rd parallel south is a circle of latitude that is 63 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and Antarctica.
At this latitude the sun is visible for 20 hours, 19 minutes during the December solstice and 4 hours, 42 minutes during the June solstice. If the latitude in the southern hemisphere is 63º26' or smaller, it is possible to view both astronomical dawn and dusk every day of the month of March. [1]
Starting at the Prime Meridian and heading eastwards, the parallel 63° south passes through:
| Co-ordinates | Continent or ocean | Notes |
|---|---|---|
| 63°0′S0°0′E / 63.000°S 0.000°E | Southern Ocean | South of the Atlantic Ocean |
| 63°0′S20°0′E / 63.000°S 20.000°E | South of the Indian Ocean | |
| 63°0′S147°0′E / 63.000°S 147.000°E | South of the Pacific Ocean | |
| 63°0′S67°16′W / 63.000°S 67.267°W | South of the Atlantic Ocean | |
| 63°0′S62°36′W / 63.000°S 62.600°W | Antarctica | Smith Island, claimed by  Argentina,  Chile and  United Kingdom |
| 63°0′S62°28′W / 63.000°S 62.467°W | Southern Ocean | South of the Atlantic Ocean |
| 63°0′S60°42′W / 63.000°S 60.700°W | Antarctica | Deception Island, claimed by Argentina, Chile and United Kingdom |
| 63°0′S60°33′W / 63.000°S 60.550°W | Southern Ocean | South of the Atlantic Ocean, passing 24 km north of Prime Head, Antarctic Peninsula |
| 63°0′S56°30′W / 63.000°S 56.500°W | Antarctica | D'Urville Island, claimed by Argentina, Chile and United Kingdom |
| 63°0′S56°8′W / 63.000°S 56.133°W | Southern Ocean | South of the Atlantic Ocean |
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The 45th parallel south is a circle of latitude that is 45° south of the Earth's equator.
The 33rd parallel north is a circle of latitude that is 33 degrees north of the Earth's equatorial plane. It is approximate at the midpoint between the equator and the Arctic Circle It crosses North Africa, Asia, the Pacific Ocean, North America and the Atlantic Ocean.
The 30th parallel north is a circle of latitude that is 30 degrees north of the Earth's equatorial plane. It stands one-third of the way between the equator and the North Pole and crosses Africa, Asia, the Pacific Ocean, North America and the Atlantic Ocean. The parallel is used in some contexts to delineate Europe or what is associated with the continent of Europe as a southernmost limit, e.g. to qualify for membership of the European Broadcasting Union.
The 55th parallel north is a circle of latitude that is 55 degrees north of the Earth's equatorial plane. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.
The 50th parallel north is a circle of latitude that is 50 degrees north of the Earth's equatorial plane. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.
The 70th parallel north is a circle of latitude that is 70 degrees north of the Earth's equatorial plane, in the Arctic. It crosses the Atlantic Ocean, Europe, Asia and North America, and passes through some of the southern seas of the Arctic Ocean.
The 30th parallel south is a circle of latitude that is 30 degrees south of the Earth's equator. It stands one-third of the way between the equator and the South Pole and crosses Africa, the Indian Ocean, Australia, the Pacific Ocean, South America and the Atlantic Ocean.
The 50th parallel south is a circle of latitude that is 50 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America.
The 60th parallel south is a circle of latitude that is 60 degrees south of Earth's equatorial plane. No land lies on the parallel—it crosses nothing but ocean. The closest land is a group of rocks north of Coronation Island of the South Orkney Islands, which are about 54 km south of the parallel, and Thule Island and Cook Island of the South Sandwich Islands, which both are about 57 km north of the parallel.
The 35th parallel south is a circle of latitude that is 35 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America.
The 55th parallel south is a circle of latitude that is 55 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America.
The 63rd parallel north is a circle of latitude that is 63 degrees north of the Earth's equatorial plane. It crosses the Atlantic Ocean, Europe, Asia and North America.
The 48th parallel south is a circle of latitude that is 48 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America.
The 53rd parallel south is a circle of latitude that is 53 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, the Pacific Ocean and South America.
The 38th parallel north is a circle of latitude that is 38 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. The 38th parallel north formed the border between North and South Korea prior to the Korean War.
The 61st parallel south is a circle of latitude that is 61 degrees south of the Earth's equatorial plane. No land lies on the parallel—it crosses nothing but the Southern Ocean.
The 62nd parallel south is a circle of latitude that is 62 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and Antarctica.
The 64th parallel south is a circle of latitude that is 64 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and the Antarctic mainland, the latter as the most northern latitude.
The 65th parallel south is a circle of latitude that is 65 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and Antarctica.
The 67th parallel south is a circle of latitude that is 67 degrees south of the Earth's equatorial plane, about 50 km south of the Antarctic Circle. It crosses the Southern Ocean and Antarctica.