This is an atmospheric hourly hindcast for the North Sea using COSMO-CLM version 5_clm_15 with wind farm parametrization from 2016-2017. The model uses a rotated grid with 400 x 440 grid points and a grid spacing of 0.02 degrees with 61 vertical levels, the rotated North pole is located at 180 W, 30 N. In rotated coordinates the model area extends from 2 ˚W to 5.98 ˚E, 10 ˚S to 1.22 ˚N, in geographical coordinates this corresponds to about 3.06 ˚W to 11.4 ˚E, 49.95 ˚N to 58.26 ˚N.