A compiled set of in situ data is important to evaluate the quality of ocean-colour satellite-data records. Here we describe the data compiled for the validation of the ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI). The data were acquired from several sources (MOBY. BOUSSOLE. https://countryscenesaddleryandpetsuppliers.shop/product-category/horse-fly-masks/