For most jobs, hydrologists need a master’s degree with a focus in the natural sciences. Hydrologists may need a license in some jurisdictions.

A bachelor’s degree is adequate for some entry-level hydrologist positions. Applicants for advanced research and university faculty positions typically need a Ph.D. Few universities offer degrees in hydrology; instead, most universities offer hydrology concentrations in their geosciences, environmental science, or engineering programs.

Students interested in becoming a hydrologist need extensive coursework in math, statistics, and physical, computer, and life sciences. Students who have experience with computer modeling, data analysis, and digital mapping will be the most prepared to enter the job market. Also, hydrologists use geographic information systems (GIS), remote sensing, and global positioning system (GPS) equipment to do their jobs.