Tropic of Cancer vs. Tropic of Capricorn: Key Differences Explained
The Tropic of Cancer is the northern circle of latitude at 23.44° N, marking where the Sun sits overhead at the June solstice; the Tropic of Capricorn is its southern mirror at 23.44° S, hosting the overhead Sun at the December solstice. Together they belt the Earth, framing the tropics.
People swap them because both names feel exotic and both lines sit 23.5° from the equator. Maps often crop labels, so memory fills “Cancer” with warm north vacation spots and “Capricorn” with southern beaches, blurring which is which until the next trivia night.
Key Differences
Tropic of Cancer: 23.44° N, June solstice, covers Mexico, Sahara, India. Tropic of Capricorn: 23.44° S, December solstice, crosses Australia, Chile, southern Africa. Both mark solar zenith extremes, but opposite hemispheres and seasons.
Examples and Daily Life
If you’re chasing summer in December, head south of the Tropic of Capricorn to Rio or Queensland. Planning a June beach trip north of the Tropic of Cancer? Think Cancún or Dubai—guaranteed overhead sun.
Which line passes through Hawaii?
The Tropic of Cancer; Hawaii sits just above 19° N.
Why aren’t the tropics exactly 23.5°?
The precise figure is 23.44°; 23.5° is a rounded shorthand.