A number of climate mysteries are rooted in uncertainties in how clouds respond to their environment in the trades, the global belt of easterly winds. Differences in radiative heating play a role in the couplings between clouds and their environment. We calculate radiative profiles from 2580 dropsondes and radiosondes from the EUREC⁴A field campaign (downstream Atlantic trades, winter 2020). We describe the method, assess uncertainty, and discuss radiative heating variability on multiple scales.