Weddell Sea at a glance
- 1,552 maverage depth
- 630 mmedian depth
- 4,470 mmaximum depth
- 798,798 km²water area
Weddell Sea is a sea. Inside its outline the GEBCO grid has about 798,798 km² of water, with an average depth of about 1,552 m (the middle value is 630 m) and a maximum of 4,470 m, found at 71.14° S, 18.26° W.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Weddell Sea?
The bar splits the Weddell Sea's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 0.6%
- 200 to 1,000 m: 56.6%
- 1,000 to 4,000 m: 36.4%
- 4,000 to 6,000 m: 6.4%
- below 6,000 m: 0%
Named features near the deepest point: Koppe Canyon (62 km), Wegener Canyon (161 km), Riiser-Larsen Basin (162 km), Quar Basin (253 km).
The Weddell Sea if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Weddell Sea's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 245 km² | under 0.1% |
| 20 m | 452 km² | under 0.1% |
| 50 m | 996 km² | 0.1% |
| 80 m | 1,442 km² | 0.2% |
| 120 m | 2,079 km² | 0.3% |
| 200 m | 4,821 km² | 0.6% |
| 500 m | 315,305 km² | 39.5% |
| 1,000 m | 456,716 km² | 57.2% |
| 2,000 m | 522,151 km² | 65.4% |
| 3,000 m | 607,816 km² | 76.1% |
| 4,000 m | 747,549 km² | 93.6% |
| 6,000 m | 798,798 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
- Bellingshausen Sea average depth about 524 m
- Amundsen Sea average depth about 603 m
- Ross Sea average depth about 2,026 m
- Davis Sea average depth about 1,562 m
- Tasman Sea average depth about 3,360 m
- Great Australian Bight average depth about 3,184 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Weddell Sea?
On average about 1,552 m in the GEBCO grid (the middle value is 630 m). The deepest cell inside its outline is 4,470 m, at 71.14° S, 18.26° W.
How big is the Weddell Sea?
About 798,798 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Weddell Sea would be land if sea level dropped?
With the sea 500 m lower, about 315,305 km² (39.5%) 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 sea. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.