The SDC_NS_CLIM_TS_V1 product contains Temperature and Salinity Climatologies for the North Sea including annual, seasonal and monthly fields covering the time periods 1955-2014 and seasonal fields for 6 decades starting from 1955 to 2014 (1955-1964, 1965-1974, 1975-1984, 1985-1994, 1995-2004, 2005-2014). The climatological fields were computed with a dataset that combines data extracted from 2 major sources: 1) the SeaDataNet infrastructure and 2) the World Ocean Database 2018. The computation was done with the DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.3.1.