55th parallel south

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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.

At this latitude the sun is visible for 17 hours, 22 minutes during the December solstice and 7 hours, 10 minutes during the June solstice.^[1]

The longest continuous east–west distance at sea is along this latitude, at 55°59'S. (see Extremes on Earth § Along constant latitude)

Starting at the Prime Meridian and heading eastwards, the parallel 55° south passes through:

Coordinates	Country, territory or ocean	Notes
55°0′S 0°0′E / 55.000°S 0.000°E / -55.000; 0.000 (Prime Meridian)	Atlantic Ocean	Passing south of Bouvet Island,  Norway
55°0′S 20°0′E / 55.000°S 20.000°E / -55.000; 20.000 (Indian Ocean)	Indian Ocean
55°0′S 147°0′E / 55.000°S 147.000°E / -55.000; 147.000 (Pacific Ocean)	Pacific Ocean	Passing just south of Macquarie Island,  Australia Passing just north of Bishop and Clerk Islets,  Australia
55°0′S 71°14′W / 55.000°S 71.233°W / -55.000; -71.233 (Chile)	Chile	Islands of Gilbert, Londonderry, London, Thompson, Gordon, Hoste, Navarino and Picton, Magallanes Region
55°0′S 67°0′W / 55.000°S 67.000°W / -55.000; -67.000 (Beagle Channel)	Pacific Ocean	Beagle Channel
55°0′S 66°42′W / 55.000°S 66.700°W / -55.000; -66.700 (Argentina)	Argentina	Isla Grande de Tierra del Fuego, Tierra del Fuego Province
55°0′S 66°23′W / 55.000°S 66.383°W / -55.000; -66.383 (Atlantic Ocean)	Atlantic Ocean	Passing just south of Isla de los Estados,  Argentina Passing just south of the island of South Georgia,  South Georgia and the South Sandwich Islands (claimed by  Argentina)

• 54th parallel south
• 56th parallel south