This webpage will hold daily updated sea-ice extent graphs until the end of the Arctic melt season 2019.

and two previous record low years (2007 and 2012).
Daily sea-ice extent data are processed at the EUMETSAT OSI SAF.
Sea-ice extent data are processed at the Norwegian Meteorological Institute for the EUMETSAT Ocean and Sea Ice Satellite Application Facility.
Additional graphs and their documentation can be found here.