The following are circles of latitude between the 60th parallel south and the South Pole. Although the 55th parallel south, crossing the southernmost point of Chile, is the last line of latitude moving southward to touch any part of any continent other than Antarctica, the 60th parallel south defines the northern limit of the Antarctic Treaty System and thus the political boundary of Antarctica.
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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.
At this latitude the sun is visible for 19 hours, 16 minutes during the December solstice and 5 hours, 32 minutes during the June solstice. On the December solstice, the sun's altitude is 52.44 degrees and on the June solstice, it is 5.56 degrees.
The lowest latitude where civil twilight can last all night lies approximately on this parallel.
Starting at the Prime Meridian and heading eastwards, the parallel 61° south passes through:
| Coordinates | Ocean | Notes |
|---|---|---|
| 61°0′S 0°0′E / 61.000°S 0.000°E | Southern Ocean | South of the Atlantic Ocean |
| 61°0′S 20°0′E / 61.000°S 20.000°E | South of the Indian Ocean | |
| 61°0′S 147°0′E / 61.000°S 147.000°E | South of the Pacific Ocean Passing through the Drake Passage between South America and the Antarctic Peninsula | |
| 61°0′S 67°16′W / 61.000°S 67.267°W | South of the Atlantic Ocean Passing just north of Elephant Island, and Clarence Island (claimed by  Argentina,  Chile and  United Kingdom)Passing just south of the South Orkney Islands,  South Georgia and the South Sandwich Islands (claimed by Argentina) |
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.
At this latitude the sun is visible for 19 hours, 45 minutes during the December solstice and 5 hours, 9 minutes during the June solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 62° south passes through:
| Coordinates | Continent or ocean | Notes |
|---|---|---|
| 62°0′S 0°0′E / 62.000°S 0.000°E | Southern Ocean | South of the Atlantic Ocean |
| 62°0′S 20°0′E / 62.000°S 20.000°E | South of the Indian Ocean | |
| 62°0′S 147°0′E / 62.000°S 147.000°E | South of the Pacific Ocean Passing through the Drake Passage between South America and the Antarctic Peninsula | |
| 62°0′S 67°16′W / 62.000°S 67.267°W | South of the Atlantic Ocean | |
| 62°0′S 58°36′W / 62.000°S 58.600°W | Antarctica | King George Island, claimed by Argentina, Chile and United Kingdom |
| 62°0′S 57°39′W / 62.000°S 57.650°W | Southern Ocean | South of the Atlantic Ocean |
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 63°26' or smaller, it is possible to view both astronomical dawn and dusk every day of the month of March.
Starting at the Prime Meridian and heading eastwards, the parallel 63° south passes through:
| Coordinates | Continent or ocean | Notes |
|---|---|---|
| 63°0′S 0°0′E / 63.000°S 0.000°E | Southern Ocean | South of the Atlantic Ocean |
| 63°0′S 20°0′E / 63.000°S 20.000°E | South of the Indian Ocean | |
| 63°0′S 147°0′E / 63.000°S 147.000°E | South of the Pacific Ocean | |
| 63°0′S 67°16′W / 63.000°S 67.267°W | South of the Atlantic Ocean | |
| 63°0′S 62°36′W / 63.000°S 62.600°W | Antarctica | Smith Island, claimed by Argentina, Chile and United Kingdom |
| 63°0′S 62°28′W / 63.000°S 62.467°W | Southern Ocean | South of the Atlantic Ocean |
| 63°0′S 60°42′W / 63.000°S 60.700°W | Antarctica | Deception Island, claimed by Argentina, Chile and United Kingdom |
| 63°0′S 60°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′S 56°30′W / 63.000°S 56.500°W | Antarctica | D'Urville Island, claimed by Argentina, Chile and United Kingdom |
| 63°0′S 56°8′W / 63.000°S 56.133°W | Southern Ocean | South of the Atlantic Ocean |
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.
At this latitude the sun is visible for 21 hours, 1 minute during the December solstice and 4 hours, 12 minutes during the June solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 64° south passes through:
| Coordinates | Continent or ocean | Notes |
|---|---|---|
| 64°0′S 0°0′E / 64.000°S 0.000°E | Southern Ocean | South of the Atlantic Ocean |
| 64°0′S 20°0′E / 64.000°S 20.000°E | South of the Indian Ocean | |
| 64°0′S 147°0′E / 64.000°S 147.000°E | South of the Pacific Ocean | |
| 64°0′S 67°16′W / 64.000°S 67.267°W | South of the Atlantic Ocean Passing just north of Brabant Island, Antarctica | |
| 64°0′S 60°35′W / 64.000°S 60.583°W | Antarctica | Antarctic Peninsula and James Ross Island, claimed by Argentina, Chile and United Kingdom |
| 64°0′S 57°31′W / 64.000°S 57.517°W | Southern Ocean | South of the Atlantic Ocean |
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.
At this latitude the sun is visible for 22 hours, 2 minutes during the December solstice and 3 hours, 35 minutes during the June solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 65° south passes through:
| Coordinates | Continent or ocean | Notes |
|---|---|---|
| 65°0′S 0°0′E / 65.000°S 0.000°E | Southern Ocean | South of the Atlantic Ocean |
| 65°0′S 20°0′E / 65.000°S 20.000°E | South of the Indian Ocean | |
| 65°0′S 147°0′E / 65.000°S 147.000°E | South of the Pacific Ocean | |
| 65°0′S 67°16′W / 65.000°S 67.267°W | South of the Atlantic Ocean | |
| 65°0′S 63°12′W / 65.000°S 63.200°W | Antarctica | Antarctic Peninsula, claimed by Argentina, Chile and United Kingdom |
| 65°0′S 59°3′W / 65.000°S 59.050°W | Southern Ocean | South of the Atlantic Ocean |
The 66th parallel south is a circle of latitude that is 66 degrees south of the Earth's equatorial plane, about 61 km north of the Antarctic Circle. It crosses the Southern Ocean and Antarctica.
This latitude also roughly corresponds to the minimum latitude in which midnight sun can last all night near the summer solstice.
At this latitude the sun rises on December 13 and does not set again until December 30.
Starting at the Prime Meridian and heading eastwards, the parallel 66° south passes through:
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.
At this latitude the sun is visible for 24 hours during the December solstice (Summer solstice) and 1 hour, 29 minutes during the June solstice (Winter solstice). If the latitude in the southern hemisphere is 67°45′ or smaller, every day of the month of September can view both astronomical dawn and astronomical dusk.
Starting at the Prime Meridian and heading eastwards, the parallel 67° south passes through:
The 68th parallel south is a circle of latitude that is 68 degrees south of the Earth's equatorial plane, in the Antarctic. It crosses the Southern Ocean and Antarctica. At this latitude, the sun is visible for 24 hours during the December Solstice, and civil twilight during the June Solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 68° south passes through:
The 69th parallel south is a circle of latitude that is 69 degrees south of the Earth's equatorial plane, in the Antarctic. It crosses the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 69° south passes through:
The 70th parallel south is a circle of latitude that is 70 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 70° south passes through:
The 71st parallel south is a circle of latitude that is 71 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 71° south passes through:
| Coordinates | Continent or ocean | Notes |
|---|---|---|
| 71°0′S 0°0′E / 71.000°S 0.000°E | Antarctica | Queen Maud Land, claimed by  Norway |
| 71°0′S 45°0′E / 71.000°S 45.000°E | Western Australian Antarctic Territory, claimed by  Australia | |
| 71°0′S 136°0′E / 71.000°S 136.000°E | Adélie Land, claimed by  France | |
| 71°0′S 142°0′E / 71.000°S 142.000°E | Eastern Australian Antarctic Territory, claimed by Australia | |
| 71°0′S 160°0′E / 71.000°S 160.000°E | Ross Dependency, claimed by  New Zealand | |
| 71°0′S 167°47′E / 71.000°S 167.783°E | Southern Ocean | South of the Pacific Ocean |
| 71°0′S 73°18′W / 71.000°S 73.300°W | Antarctica | Alexander Island and Antarctic Peninsula - claimed by Argentina, Chile and United Kingdom (overlapping claims) |
| 71°0′S 60°24′W / 71.000°S 60.400°W | Southern Ocean | Weddell Sea, south of the Atlantic Ocean |
| 71°0′S 10°59′W / 71.000°S 10.983°W | Antarctica | Queen Maud Land, claimed by Norway |
The 72nd parallel south is a circle of latitude that is 72 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
This is the parallel where twilight/nighttime boundary on the equinoxes.
This is also the lowest parallel that golden hour occurs even at midnight sun, because the Sun is less than 6°00'00" above the horizon. Midnight sun without golden hour occurs at latitudes greater than 72°33'38.58804", i.e., about 666.8 km (414.3 mi) south of the Antarctic Circle in the case of the December Solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 72° south passes through:
The 73rd parallel south is a circle of latitude that is 73 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 73° south passes through:
The 74th parallel south is a circle of latitude that is 74 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 74° south passes through:
The 75th parallel south is a circle of latitude that is 75 degrees south of the Earth's equatorial plane in the Antarctic. It passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 75° south passes through:
The 76th parallel south is a circle of latitude that is 76 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 76° south passes through:
The 77th parallel south is a circle of latitude that is 77 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 77° south passes through:
The 78th parallel south is a circle of latitude that is 78 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 78° south passes through:
The 79th parallel south is a circle of latitude that is 79 degrees south of the Earth's equatorial plane in the Antarctic.
The parallel passes only through Antarctica and Antarctic ice shelves.
Starting at the Prime Meridian and heading eastwards, the parallel 79° south passes through:
The 80th parallel south is a circle of latitude that is 80 degrees south of the Earth's equatorial plane, and 10 degrees (690 miles/1100 kilometers) north of the United States Amundsen–Scott South Pole Station. Regions south of this latitude are excluded from UTM zones.
This line of latitude passes only through Antarctica and Antarctic ice shelves.
Starting at the Prime Meridian and heading eastwards, the parallel 80° south passes through:
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