Tropic of Cancer, Meaning, Location, Countries, Indian States

The Tropic of Cancer is one of the five major circles of latitude that mark important positions on the Earth. It lies at approximately 23°26′ North latitude and represents the northernmost point where the Sun can appear directly overhead at noon. This phenomenon occurs once every year during the June Solstice, around 21 June.

The Tropic of Cancer divides the Earth into two major parts: the tropical region and the subtropical region of the Northern Hemisphere. Countries located along this line experience a warm climate and significant seasonal changes in daylight.

What is the Tropic of Cancer?

The Tropic of Cancer is an imaginary line drawn around the Earth parallel to the Equator. It marks the northern boundary of the tropical zone. At this latitude, the Sun is directly overhead at noon once a year during the June solstice.

The name “Cancer” comes from the zodiac constellation Cancer, where the Sun appeared thousands of years ago during the solstice.

Countries Through Which the Tropic of Cancer Passes

The Tropic of Cancer passes through 17 countries across three continents: North America, Africa, and Asia. These countries experience high solar radiation and warm climatic conditions due to their location near the tropical belt.

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States of India through which Tropic of Cancer Passes

The Tropic of Cancer passes almost through the middle of India and divides the country into tropical and subtropical regions. It crosses eight Indian states, starting from Gujarat in the west and moving towards the northeast. These states are Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram.

Climatic Variations Along the Latitude of the Tropic of Cancer

The Tropic of Cancer passes through different continents, so the climate along this latitude varies significantly. Due to differences in topography, ocean currents, pressure systems, and seasonal winds, regions along the Tropic of Cancer experience a variety of climate types, ranging from hot deserts to monsoon climates.

1. Arid Desert Climate

In North Africa and parts of the Middle East, the Tropic of Cancer passes through extremely dry regions. These areas lie under subtropical high-pressure belts, which prevent cloud formation and rainfall. As a result, they experience very hot days, low humidity, and minimal rainfall. Major examples include the Sahara Desert and the Arabian Desert.

Also Read: Pressure Belts of Earth

2. Tropical Monsoon Climate

In South and Southeast Asia, the climate along the Tropic of Cancer is strongly influenced by monsoon winds. Countries such as India, Bangladesh, and Myanmar receive heavy seasonal rainfall during the monsoon season. This rainfall supports agriculture and contributes to the cultivation of crops like rice, tea, and sugarcane.

3. Temperate Climate Regions

Some regions along the Tropic of Cancer experience relatively moderate or temperate climatic conditions due to altitude and local geography. Parts of China and the Mexican highlands in Mexico have milder temperatures compared to desert regions. These areas typically experience distinct wet and dry seasons, supporting diverse vegetation and agriculture.