The Hydrometeorological Service is attached to Ministry of Agriculture.The Department’s general responsibility is to monitor and evaluate the weather and water resources in Guyana and to actively support the government in disaster risk management and aeronautical, water, agriculture, engineering and other agencies for the socio-economic development of the country. It is the official provider of weather, water and climate information and related products and services for Guyana.

The collection of rainfall data began as early as the 19th century, but this was done under the auspices of the various ministries and sugar estates. The Hydrometeorological Service was established on October 5, 1965, based on the recommendation of a World Meteorological Organization’s representative. The Service was once overseen by the Ministry of Works and Hydraulics, but then changed hands to the Ministry of Agriculture in 1992.