The climatic condition of Angul is much varied. It has mainly 4 seasons. The summer season is from March to Mid June, the period from Mid June to September is the Rainy season, October and November constitute the post monsoon season and winter is from December to February. The best time to visit this district is during winter.
Rainfall The average annual rainfall of the district is 1421 mm. However there is a great variation of rainfall from year to year. The rainfall in the district during the last 10 years varied between 896 mm & 1744 mm. There are 70 rainy days on an average in a year, but it varies from 66 at Athamallik to 80 at Pallahara. The distribution of rainfall is also quite erratic causing wide spread drought year after year.2013 was marked by Cyclone Phailin that caused extensive rainfall resulting to floods.
Temperature There is a meteorological observatory in the district. The data of this observatory may be taken as representative of the meteorological condition of the whole district. The hot season commences by beginning of March. May is the hottest month with a mean daily maximum temperature at 44 degree Celsius. With the onset of monsoon, early in June day temperature drops appreciably. After withdrawal of monsoon by the 1st week of October both day and night temperature began to diminish steadily. December is usually coldest month of a year with a mean daily minimum temperature of 11 degree Celsius. In association with the passage of western disturbances across north India during winter months short spells of cold occur and the minimum temperature drops down to 10 degree Celsius. The lowest minimum temperature was 5.2 degree Celsius in Angul and neighborhood are hottest part of the district and have lower rainfall. The summer temperature has shown as increasing trend in recent past.
Winds Winds are generally light to moderate with some increase in force in the summer and southwest monsoon seasons. Winds usually blow from southwest and northwest directions in the monsoon. In the post monsoon and cold seasons winds blow between the west and north. In the summer months the winds become variable in direction.2013 cyclone Phailin rose wind speed gusts to 100kmph.