The 30th parallel north is a circle of latitude

Circle of latitude

A circle of latitude, on the Earth, is an imaginary east-west circle connecting all locations that share a given latitude...

 that is 30 degrees

Degree (angle)

A degree , usually denoted by ° , is a measurement of plane angle, representing 1⁄360 of a full rotation; one degree is equivalent to π/180 radians...

 north

True north

True north is the direction along the earth's surface towards the geographic North Pole.True geodetic north usually differs from magnetic north , and from grid north...

 of the Earth's

Earth

Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

 equatorial plane

Equator

An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

. It stands one-third of the way between the equator

Equator

An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

 and the North Pole

North Pole

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets its surface...

 and crosses Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, Asia

Asia

Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

, the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

 and the Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

.

It is the approximate southern border of the horse latitudes

Horse latitudes

Horse Latitudes or Subtropical High are subtropical latitudes between 30 and 35 degrees both north and south. This region, under a ridge of high pressure called the subtropical high, is an area which receives little precipitation and has variable winds mixed with calm.The consistently warm, dry...

 in the Northern Hemisphere, meaning that much of the land area touching the 30th parallel is arid

Arid

A region is said to be arid when it is characterized by a severe lack of available water, to the extent of hindering or even preventing the growth and development of plant and animal life...

 or semi-arid

Semi-arid

A semi-arid climate or steppe climate describes climatic regions that receive precipitation below potential evapotranspiration, but not extremely...

. If there is a source of wind from a body of water the area would more likely be subtropical.

At this latitude the sun

Sun

The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...

 is visible for 14 hours, 5 minutes during the summer solstice

Summer solstice

The summer solstice occurs exactly when the axial tilt of a planet's semi-axis in a given hemisphere is most inclined towards the star that it orbits. Earth's maximum axial tilt to our star, the Sun, during a solstice is 23° 26'. Though the summer solstice is an instant in time, the term is also...

 and 10 hours, 13 minutes during the winter solstice

Winter solstice

Winter solstice may refer to:* Winter solstice, astronomical event* Winter Solstice , former band* Winter Solstice: North , seasonal songs* Winter Solstice , 2005 American film...

. On 21 July, the sun is at 83.83 degrees up in the sky and at 36.17 degrees on 21 December.

At this latitude:

• One degree of longitude = 96.49 km or 59.95 mi
• One minute of longitude = 1.61 km or 1.00 mi
• One second of longitude = 26.80 m or 87.93 ft

Starting at the Prime Meridian

Prime Meridian

The Prime Meridian is the meridian at which the longitude is defined to be 0°.The Prime Meridian and its opposite the 180th meridian , which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.An international...

 and heading eastwards, the parallel 30° north passes through:

Co-ordinates	Country, territory or sea	Notes
30°0′N 0°0′E
30°0′N 9°28′E
30°0′N 24°56′E
30°0′N 34°32′E
30°0′N 35°11′E
30°0′N 38°0′E
30°0′N 43°38′E
30°0′N 47°9′E		Mainland and Warbah Island Warbah Island Warbah Island is an island belonging to Kuwait, located in the Persian Gulf, near the mouth of the Euphrates River. It is located roughly east of the Kuwaiti mainland, north of Bubiyan Island and south of the Iraqi mainland. It is roughly long and wide with a total area of...
30°0′N 48°9′E	Persian Gulf Persian Gulf The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...
30°0′N 48°16′E
30°0′N 48°27′E
30°0′N 48°40′E	Persian Gulf Persian Gulf The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...
30°0′N 49°33′E		For about 2km
30°0′N 49°34′E	Persian Gulf Persian Gulf The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...
30°0′N 50°9′E
30°0′N 61°0′E
30°0′N 66°19′E		Balochistan > Punjab
30°0′N 73°33′E		Rajasthan Rajasthan Rājasthān the land of Rajasthanis, , is the largest state of the Republic of India by area. It is located in the northwest of India. It encompasses most of the area of the large, inhospitable Great Indian Desert , which has an edge paralleling the Sutlej-Indus river valley along its border with... > Punjab > Haryana Haryana Haryana is a state in India. Historically, it has been a part of the Kuru region in North India. The name Haryana is found mentioned in the 12th century AD by the apabhramsha writer Vibudh Shridhar . It is bordered by Punjab and Himachal Pradesh to the north, and by Rajasthan to the west and south... > Uttar Pradesh Uttar Pradesh Uttar Pradesh abbreviation U.P. , is a state located in the northern part of India. With a population of over 200 million people, it is India's most populous state, as well as the world's most populous sub-national entity... > Uttarakhand Uttarakhand Uttarakhand , formerly Uttaranchal, is a state in the northern part of India. It is often referred to as the Land of Gods due to the many holy Hindu temples and cities found throughout the state, some of which are among Hinduism's most spiritual and auspicious places of pilgrimage and worship...
30°0′N 80°43′E
30°0′N 82°30′E		Tibet Tibet Autonomous Region The Tibet Autonomous Region , Tibet or Xizang for short, also called the Xizang Autonomous Region is a province-level autonomous region of the People's Republic of China , created in 1965.... > Sichuan Sichuan ' , known formerly in the West by its postal map spellings of Szechwan or Szechuan is a province in Southwest China with its capital in Chengdu... > Chongqing Chongqing Chongqing is a major city in Southwest China and one of the five national central cities of China. Administratively, it is one of the PRC's four direct-controlled municipalities , and the only such municipality in inland China.The municipality was created on 14 March 1997, succeeding the... > Hubei Hubei ' Hupeh) is a province in Central China. The name of the province means "north of the lake", referring to its position north of Lake Dongting... > Hunan Hunan ' is a province of South-Central China, located to the south of the middle reaches of the Yangtze River and south of Lake Dongting... > Hubei > Anhui Anhui Anhui is a province in the People's Republic of China. Located in eastern China across the basins of the Yangtze River and the Huai River, it borders Jiangsu to the east, Zhejiang to the southeast, Jiangxi to the south, Hubei to the southwest, Henan to the northwest, and Shandong for a tiny... > Jiangxi Jiangxi ' is a southern province in the People's Republic of China. Spanning from the banks of the Yangtze River in the north into hillier areas in the south, it shares a border with Anhui to the north, Zhejiang to the northeast, Fujian to the east, Guangdong to the south, Hunan to the west, and Hubei to... > Anhui > Zhejiang Zhejiang Zhejiang is an eastern coastal province of the People's Republic of China. The word Zhejiang was the old name of the Qiantang River, which passes through Hangzhou, the provincial capital...  — passing just north of Ningbo Ningbo Ningbo is a seaport city of northeastern Zhejiang province, Eastern China. Holding sub-provincial administrative status, the municipality has a population of 7,605,700 inhabitants at the 2010 census whom 3,089,180 in the built up area made of 6 urban districts. It lies south of the Hangzhou Bay,...
30°0′N 121°38′E	East China Sea East China Sea The East China Sea is a marginal sea east of China. It is a part of the Pacific Ocean and covers an area of 1,249,000 km² or 750,000 square miles.-Geography:...	Hangzhou Bay Hangzhou Bay Hangzhou Bay, or the Bay of Hangzhou , is an inlet of the East China Sea, bordered by the province of Zhejiang and the municipality of Shanghai. The Qiantang River flows into the bay.It lies south of Shanghai, and ends at the city of Hangzhou...
30°0′N 121°50′E		Zhejiang (islands of Jintang Jintang Island Jintang Island is an island in the Zhoushan prefecture-level city in China's northeastern Zhejiang province. It has a population of about 41700.... , Zhoushan Zhoushan Island Zhoushan Island is the principal island of the namesake archipelago Zhoushan Islands, governed by Zhoushan City, Zhejiang Province, the People's Republic of China. Its name means "Boat Mountain", because its shape. It is the province's largest island, and third largest in mainland China...  and Mount Putuo Mount Putuo Mount Putuo is an island southeast of Shanghai, in Zhoushan prefecture of Zhejiang province, China. It is famous in Chinese Buddhism, and is considered the bodhimanda of Avalokitesvara , a revered Bodhisattva in many parts of East Asia... )
30°0′N 122°24′E	East China Sea East China Sea The East China Sea is a marginal sea east of China. It is a part of the Pacific Ocean and covers an area of 1,249,000 km² or 750,000 square miles.-Geography:...	Hangzhou Bay Hangzhou Bay Hangzhou Bay, or the Bay of Hangzhou , is an inlet of the East China Sea, bordered by the province of Zhejiang and the municipality of Shanghai. The Qiantang River flows into the bay.It lies south of Shanghai, and ends at the city of Hangzhou...
30°0′N 129°55′E		Island of Kuchinoshima Kuchinoshima is a volcanic island located in the Tokara Islands, part of the Nansei Islands, Japan. It is one of the islands in Toshima village. The island had 140 inhabitants as of 2004....
30°0′N 129°55′E	Pacific Ocean Pacific Ocean The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
30°0′N 115°48′W		Baja California Peninsula Baja California Peninsula The Baja California peninsula , is a peninsula in northwestern Mexico. Its land mass separates the Pacific Ocean from the Gulf of California. The Peninsula extends from Mexicali, Baja California in the north to Cabo San Lucas, Baja California Sur in the south.The total area of the Baja California...
30°0′N 114°32′W	Gulf of California Gulf of California The Gulf of California is a body of water that separates the Baja California Peninsula from the Mexican mainland...
30°0′N 112°44′W
30°0′N 104°41′W		Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...   > Louisiana Louisiana Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...  — passing just north of New Orleans
30°0′N 89°27′W	Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...
30°0′N 88°50′W		Louisiana Louisiana Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...  - Chandeleur Islands Chandeleur Islands The Chandeleur Islands are a chain of uninhabited barrier islands approximately long, located in the Gulf of Mexico. They form the easternmost point of the state of Louisiana, USA and are a part of the Breton National Wildlife Refuge...
30°0′N 88°50′W	Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...
30°0′N 85°30′W		Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...
30°0′N 84°22′W	Gulf of Mexico Gulf of Mexico The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...	Apalachee Bay Apalachee Bay Apalachee Bay is a bay in the northeastern Gulf of Mexico occupying an indentation of the Florida coast to the west of where the Florida peninsula joins the United States mainland. It is bordered by Taylor, Jefferson, Wakulla and Franklin counties. The Aucilla, Econfina, St. Marks and Ochlocknee...
30°0′N 83°51′W		Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...
30°0′N 81°19′W	Atlantic Ocean Atlantic Ocean The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...
30°0′N 9°43′W
30°0′N 5°8′W