Current conditions
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 2024. Between August 19 to September 17, 2025, rainfall below climatology, concentrated in the southeast of the monitored area, characterized a precipitation deficit over the main course of the Amazon River in Brazilian territory, the river basins of Abacaxis, Aripuanã, Branco, Coari, Curuá Una, Guaporé, Iriri, Japurá, Javari, Ji-Paraná, Juruá, Juruena, Jutaí, Madeira, the left bank basins of the Amazon River in the northeast of Pará State, Negro, Purus, Tapajós, Tefé, Teles Pires, Ucayali, Xingu and the main course of the Solimões River; forecast of rainfall above climatology over the river basins of Beni, Marañon and Napo; rainfall near normal over the main course of the Amazon River in Peruvian territory, the river basins of Içá, Mamoré and the left bank basins of the Amazon River in the northeast of Amazonas State and in the northwest of Pará State. The multi-model indicates for the coming weeks a forecast of rainfall below climatology over the main course of the Amazon River in Brazilian territory, the Branco and Curuá Una river basins, and the left bank basins of the Amazon River in the northeast of Amazonas State and in the northeast and northwest of Pará State, and rainfall above climatology over the Juruá River basin.