Climate change affects all human activities, including military activities. An effect that can neutralize all efforts to achieve the goal. Therefore, the purpose of this research is to identify the military consequences of temperature changes and temporal and spatial changes of precipitation in Iran. The research method is descriptive-analytical and the type of research is applied. Interview tools with experts and authentic scientific documents have been used to collect data. For data analysis, first the data was collected and the themes were identified, then these themes were reviewed and finally the main and sub-themes were named and the military consequences of temperature changes and precipitation changes were identified. The results of the studies show that climate change affects all elements of military activities and the military consequences of temperature changes in the field of manpower, readiness and support and equipment, and the military consequences of precipitation changes in the field of engineering, operations, manpower, readiness and support and equipment. Identification and these consequences in the mentioned fields are more and more effective than other military elements. Consequences that can affect the outcome of an operation or military activity.