The Climate of the major portion of the district which lies in the elevation to the north of the District puts a great impact to the climatic condition of the Malkangiri District. The year may be divided into four seasons, the hot season from March to June, the mansoon season from July to September, the post-mansoon months October and November, and the cold season from December to February. December is the the coldest part of the year with the average daily minumim temperature at 11.2°C. Both day and night temperature progressively increase after January till May which is the hottest month. On individual days in May and June before the onset of the mansoon maximum temperature may reach over 47°C. Therefore temperature decreases with the onset of the mansoon. During the mansoon, weather is cool and pleasent with day temperatures nearly the same as those in the cold seasons. Humidity is generally high especially in the mansoon and post mansoon months. In other months, afternoons are comparatively drier. Humidity varies widely between the mansoon months of July and August and the winter months of November and December. During the summer months winds are generally light and blow from directions mainly between south and west.During the pre-mansoon and mansoon seasons winds strengthen and blow from a south-westerly or westerly direction. In the post-mansoon and cold seasons winds are light and variable. The district is affected by depressions from the Bay of Bengal particularly in September and October that causes high wind and widespread heavy rain. A few high wind and thunderstorms occure in the pre-mansoon months.

          The spatial distribution of rainfall is largely infulenced by the Eastern Ghats which run roughly from south-west to north-east. July and August are the rainiest months in the year. The variation in the rainfall from year to year not large. During the other season there is not much difference in the rainfall over the areas.