Abstract-.This study applied Fuzzy Inference SystemSugeno to forecast electrical load by considering the external factors. To see the accuracy of forecasting using Fuzzy Inference System Sugeno, then a comparison between the forecasting results of Fuzzy Inference SystemSugenousing historical data with Fuzzy Inference SystemSugeno using external factors was done. By using external factors method, resulted the smallest RMSE of 0762 and using historical data obtained error (RMSE) of 1028. The results of the study came to the conclusion that Fuzzy Inference System Sugenomethod using external factors to forecast the consumption of electrical load givesa better result than Fuzzy Inference SystemSugeno using only historical data.Index Terms-Fuzzy Inference System Sugeno, external factors, consumption of electrical load forecasting.