This entry contains all of the necessary derived data files required to reproduce the analysis and recreate the figures presented in the manuscript titled "Seasonal recurrence and modular assembly of an Arctic pelagic marine microbiome". The scripts required to process the data files along with a detailed description on the analysis can be found here - https://github.com/tpriest0/Fram_Strait_WSC_time_series_2016-2020 The raw sequence data from which these derived files were generated are available at ENA - see 'Related Datasets' below.