This article figure out the performance of distinctive membership functions (MFs) with fuzzy MPPT controller applied to solar PV panels under insolation variations in climate. The generic MFs under examination are triangular, bell type, trapezoidal, Gaussian, Gaussian-2 and Sigmoidal types.  The effect of each type of MFs for solar PV panels under climatic changes is examined through MATLAB simulation. The out turn of the fuzzy controller is assessed in terms of voltage ripple, conversion efficiency and steady state error for various MFs with triangular MF as the base.