This dataset contains an extension for 2018 of the the Dutch Offshore Wind Atlas (DOWA). DOWA is validated wind climatology (and information on temperature, pressure and relative humidity) based on 10 years (2008-2017) of model data: weather model HARMONIE-AROME is nested in re-analyses ERA5. More information on the website: www.dutchoffshorewindatlas.nl. Note: the proj4 string in the NetCDF file is incorrect. It should be: +proj=lcc +lat_1=52.500000 +lat_2=52.500000 +lat_0=52.500000 +lon_0=.000000 +k_0=1.0 +x_0=-92963.487426 +y_0=230383.739533 +a=6371220.000000 +b=6371220.000000