Dataset
Arctic sea ice extent
owid.arctic-sea-ice
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About
Average Arctic sea ice extent in September, the month when it is usually at its lowest. Average Arctic sea ice extent in March, the month when it is usually at its highest.
Cite as: National Snow and Ice Data Center – Sea Ice Index (2026) – with minor processing by Our World in Data. “Minimum Arctic sea ice extent” [dataset]. National Snow and Ice Data Center, “Sea Ice Index Version 4” [original data].
- Publisher
- Our World in Data
- Tier
- Official
- Covers
- 1979–2026
- Places
- Countries, regions and groups of the world
- Updated
- quarterly
- Last modified
- 2026-10-12
- Units
- million square kilometers
- License
- Creative Commons Attribution 4.0 International
- Method
- https://ourworldindata.org/grapher/arctic-sea-ice
Columns
| Name | Type | Description |
|---|---|---|
| entity | text | country, region or group |
| code | text | ISO 3166-1 alpha-3, OWID_ for OWID's own groups, empty for most regions |
| year | integer | |
| arctic_sea_ice_extent_min | number | Minimum Arctic sea ice extent (million square kilometers) |
| arctic_sea_ice_extent_max | number | Maximum Arctic sea ice extent (million square kilometers) |
Dimensions
| Name | Values |
|---|---|
| entity | |
| year |