Update

Since Sunday, February 21, Spain has ceased to be considered a high incidence area classed as a regular risk zone.
The German government will continue to require travellers to take a negative test after at least five days in quarantine. The move will include the whole of Spain, including the Canary Islands and the Balearic Islands.
Since January 24, Spain has been classed as a “high incidence area”, and along with the United Kingdom, Brazil, Ireland, Portugal, South Africa, Lesotho travellers have been banned from entering the country. Exceptions included essential travel, transnational workers or those with residence in Germany. This also applied to residents of the Czech Republic and Austrian Tyrol.