Ice climatology of the Arctic and Antarctic
Dansk version
The Arctic Today
Climate and Weather
- Mean temperatures
  North of 80N

- Ice Extent in the
  Northern Hemisphere

- Minimum Ice Extent
  since 1979

- Monthly mean Sea Ice
  Extent since 1979

Satellite Products
- Sea ice drift and-
  sea ice concentration

- Sea Surface temp. and

- Ice temperatures
Climatological Sea Ice Atlas
Ice concentration
Monthly means
Monthly variations
Ice extent
Download ice edges
Break-up, freeze-up and open water days
Trend (significance)
Surface temperature
Sea ice
Land ice
Sea ice temperature and extent
Model Products
- Ice thickness and volume
- Ice and Ocean Forecasts
Seaice & Navigation
- Satellite Images
  around Greenland

These maps show monthly mean sea ice concentration.

Ice concentration is defined as the fractor of the sea surface which is covered by ice, where 100% corresponds to a complete ice cover and 0% corresponds to open waters. These maps are based on data from American satelites during the period from 1978 to 2014, which have been re-processed by by the European project: EUMETSAT OSI SAF. The sea ice typically reaches its maximum extent during March, extending approximately 14-16 million square kilometers, and its minimum extent by the end of september, which in the 1980's was approximately 7 million square kilometers compared to today's 3-5 million square kilometers.


Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec


Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

In order to document OSI-SAF's impact and enable ongoing support of OSI-SAF, you are obligated to acknowledge OSI-SAF in your work. Therefore, if you wish to use any material presented here please read this file.