In the vast expanses of the ocean, defining where the north ends and the south begins is a matter of currents and temperature. The oceanic equivalent of the Equator is often referred to as the .

Spoiler: It’s not about the weather, palm trees, or warm beaches.

The Southern Hemisphere officially starts at the — 0° latitude.

For meteorologists, the Southern Hemisphere "starts" where the weather patterns shift, often drifting several degrees north or south of the actual Equator depending on the season.

However, you cannot see the Equator in the natural landscape. It is a mathematical calculation. Because the Earth bulges slightly at the center, the Equator is slightly longer than the circumferences near the poles, measuring about 24,901 miles (40,075 km).

So, where exactly does the Southern Hemisphere start? The answer depends on whether you are asking a geographer, a meteorologist, or a navigator.

Vladyslav Petrovych
CRO/Co-founder
https://www.linkedin.com/in/vpetrovych/
Vladyslav Petrovych is Noltic's top tech guru, 18x certified Salesforce architect. Leader in driving innovation for high-load cloud solutions development.
Oleksandra Petrenko
Content writer
https://www.linkedin.com/in/aleksandra-petrenko23/
Oleksandra Petrenko is engaging and data-driven content creator focused on Salesforce solutions.
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