Higashimurayama experiences a moderate climate with distinct seasonal changes. Winters are chilly, with temperatures often below freezing in January and December, but mild compared to other parts of Japan. Springs arrive in March, bringing warmer temperatures that gradually rise throughout the month, while autumns are similar to springs, with temperatures dropping after September. Summers are warm and humid, with July being the hottest month, while April and May are pleasant with gentle warmth.