- To maintain long term authenticated meteorological records
- To provide the data series for research and national building activities
- To design optimal observational network for collection of reliable meteorological data
- To issue seasonal forecasts of southwest monsoon rainfall for economic growth of country
- To advice farmers about cropping patterns, to face the vagaries of monsoon rainfall
- To Install and upkeep of surface meteorological instruments.
- To issue day to day forecast of weather condition (actual and expected) over the country.
- To lay down norms for the aviation and cyclone warning services for the country to keep at par with the international standard.
- To impart training in the field of weather forecasting to Indian, South Asian and African