The calculation of the components of the water balance in the Jazmourian area is one of the fundamental concerns of researchers and water resource experts. Accurate measurement of precipitation is essential as the most important component in water balance calculations to achieve reliable results in hydrological applications. Due to the high variability of precipitation quantities in the area and time, monitoring it at regional scales through ground stations is difficult. Meanwhile, Jazmourian wetland, due to its considerable area, lacks any meteorological and evaporation measurement stations. Fortunately, advancements in technology have brought numerous rainfall datasets that can be used to assess precipitation patterns. In this study, four widely used rainfall datasets, including GPM, CHIRPS, PERSIANN-CDR, and TRMM, were examined to evaluate the accuracy of precipitation estimates in the Jazmurian wetland and to estimate precipitation within the Jazmurian region. The results of the satellite data accuracy study at 70 ground stations were evaluated using R-squared, NRMSE, RMSE, Rp, MAE and MBE statistics. The results of the satellite precipitation data evaluation showed that in the studied stations, on average, the Rp coefficient varied between 0.7 and 0.81, the R-squared coefficient between 0.51 and 0.65, the NRMSE coefficient between 10.56 and 12.87, the RMSE coefficient between 18.03 and 22.98, the MAE coefficient between 9.31 and 11.14 and the MBE coefficient between -0.18 and 0.64. Also, based on the Rp and R-squared statistics, the GPM precipitation data at the studied stations had the best performance, followed by the TRMM data. The study results show that the precipitation data from CHIRPS and PERSIANN-CD have acceptable performance. It is worth noting that the estimated precipitation results obtained using remote sensing were compared with the precipitation estimated through station interpolation in the Jozmurian watershed, and the results indicated that all the satellites examined estimated the precipitation in the wetland area to be higher than the interpolation method based on the stations within the watershed.