Surface waves due to rain are studied in the laboratory. The rms surface deviation is found to vary as kd/gv, where k is rain kinetic energy flux, d is drop size, g is gravity, and p is viscosity. Wave spectra are quite sharp, and amplitude distributions appear to be Rayleigh in nature, at least in a qualitative sense. The logarithmic wind profile surface roughness z0 for rain in light winds is estimated and is found to be much large than that due to the wind alone.