Maps of observed precipitation conditions, individual graphics by basin are produced from MERGE/GPM data generated by INPE/CPTEC, considering the period from de 2000 a 2025. Between December 30 to January 28, 2026, below-average rainfall caused precipitation deficits along the main course of the Amazon River in Brazilian and Peruvian territories, the watersheds of the Abacaxis, Aripuanã, Branco, Coari, Curuá Una, Guaporé, Içá, Iriri, Javari, Juruena, Jutaí, Mamoré, the left bank basins of the Amazon River in the northeast and northwest of the state of Pará, Tapajós, Tefé, Teles Pires, Xingu, and the main course of the Solimões River; rainfall above climatology recorded in the Marañon, Negro, and Ucayali river basins; rainfall close to normal recorded in the Beni, Japurá, Ji-Paraná, Juruá, Madeira river basins, basins on the left bank of the Amazon River in the northeast of the state of Amazonas, Napo, and Purus. The multimodel indicates below-average rainfall for the coming weeks in the east, southeast, and south of the monitored region, on the main course of the Amazon River in Brazilian territory, the Abacaxis, Aripuanã, Beni, Curuá Una, Guaporé, Iriri, Ji- Paraná, Juruena, Mamoré, basins on the left bank of the Amazon River in the northeast of the state of Amazonas and in the northeast and northwest of the state of Pará, Tapajós, Teles Pires, and Xingu; rainfall above climatology is forecast for the northwest of the monitored region, along the main course of the Amazon River in Peruvian territory, and in the basins of the Içá, Japurá, Marañon, Napo, and Negro rivers.