Baía de São Marcos at a glance
- 14 maverage depth
- 13 mmedian depth
- 95 mmaximum depth
- 4,993 km²water area
Baía de São Marcos is a bay. Inside its outline the GEBCO grid has about 4,993 km² of water, with an average depth of about 14 m (the middle value is 13 m) and a maximum of 95 m, found at 2.46° S, 44.36° W.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Baía de São Marcos?
The bar splits the Baía de São Marcos's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 100%
- 200 to 1,000 m: 0%
- 1,000 to 4,000 m: 0%
- 4,000 to 6,000 m: 0%
- below 6,000 m: 0%
Named features near the deepest point: Canopus Bank (671 km), Amazon Canyon (782 km), Guiana Basin (1,515 km), Fifteen-Twenty Fracture Zone (1,984 km).
The Baía de São Marcos if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Baía de São Marcos's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 1,970 km² | 39.4% |
| 20 m | 3,792 km² | 75.9% |
| 50 m | 4,989 km² | 99.9% |
| 80 m | 4,993 km² | 100% |
| 120 m | 4,993 km² | 100% |
| 200 m | 4,993 km² | 100% |
| 500 m | 4,993 km² | 100% |
| 1,000 m | 4,993 km² | 100% |
| 2,000 m | 4,993 km² | 100% |
| 3,000 m | 4,993 km² | 100% |
| 4,000 m | 4,993 km² | 100% |
| 6,000 m | 4,993 km² | 100% |
A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how water would really drain.
Nearby seas
- Caribbean Sea average depth about 2,547 m
- Sargasso Sea average depth about 5,394 m
- Gulf of Guinea average depth about 2,882 m
- Gulf of Mexico average depth about 1,583 m
- Gulf of Saint Lawrence average depth about 163 m
- Bahía de Campeche average depth about 921 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Baía de São Marcos?
On average about 14 m in the GEBCO grid (the middle value is 13 m). The deepest cell inside its outline is 95 m, at 2.46° S, 44.36° W.
How big is the Baía de São Marcos?
About 4,993 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Baía de São Marcos would be land if sea level dropped?
With the sea 10 m lower, about 1,970 km² (39.4%) of its water would be land. At 6,000 m lower, 100% would be. This is a simple bathtub model that lowers the sea evenly everywhere.
Data: depths from the GEBCO_2026 grid, statistics worked out inside the Natural Earth outline of the bay. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.