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
Surface temperature, ice caps
Sea ice temperature and extent
Model Products
- Ice thickness and volume
- Ice and Ocean Forecasts
Seaice & Navigation
- Satellite Images
  around Greenland

These maps show the monthly mean sea ice extents. These are defined as the extent of the monthly mean sea ice concentration which exceeds 30% as this limit is used by OSI SAF to distinguish open water and open ice (reference). The maps are additionally overlayed with the corresponding multi-year montly mean percentiles of the period 1979-2021.

Click here to change between the full period and the wmo standard climate period.

What is ice concentration?

1) Show the extent of
2) Show the multi-year evolution/animation of


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.

This page is a result of the sea ice concentration climatology. To download a summary data set climatology click here.