Harashim has a Mediterranean climate (Köppen climate classification: "Csa") with hot, dry summers and cool, rainy and occasionally snowy winters. The village receives of precipitation per year. Summers are rainless and hot with an average high temperature of and an average low temperature of . Winters are cool and wet, and precipitation is occasionally in the form of snow. Winters have an average high temperature of and an average low temperature of . Harashim is the wettest inhabited place in Israel.