OCEAN · OCEANS & SEAS · ATLANTIC OCEAN
Sea of Marmara
The Sea of Marmara is a sea of the Atlantic Ocean, covering 11,675 km² — the #96 largest of the world's 101 named ocean and sea areas. Here's how it ranks, what borders it, and the live conditions at its centre right now.
Boundaries & area: Marine Regions (VLIZ), IHO Sea Areas v3 — from the IHO “Limits of Oceans & Seas” (S-23). MRGID 3369.
Live from Open-Meteo Marine at 40.7°, 28.2° (the sea's representative centre). A near-real-time model estimate.
How deep is the Sea of Marmara?
The IHO sea-area dataset that draws this map records each sea's name, boundary and surface area — not its depth, which varies enormously from the shallow shelf at its edges to its deepest trench. Rather than quote a single misleading number, we measure the water column directly: the live ocean currents trace its motion, and the deep-ocean layers (Argo floats and the descend-here column, coming to the Ocean canvas) read real temperature and depth as you go down.
SEE IT ON THE MAP
See the Sea of Marmara coloured on the live oceans-&-seas map.