We describe the OpenSat4Weather public dataset, which provides time series of received power from 215 TV-SAT satellite microwave links located in Southern France over a five-month observation period and at 1-min resolution. These data can be processed to gather indirect rainfall intensity measurements. OpenSat4Weather also includes concurrent data from operational rain gauges and weather radars, and ERA5 0°C isotherm height data, to derive the wet fraction of the satellite-to-ground path.