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 12 to September 10, 2025, rainfall below climatological norms concentrated in the southeast of the monitored area characterized a precipitation deficit over the main course of the Amazon River in Brazilian and Peruvian territories, the hydrographic basins of the Abacaxis, Aripuanã, Branco, Coari, Guaporé, Iriri, Japurá, Javari, Ji-Paraná, Juruá, Juruena, Jutaí, Madeira, the left bank basins of the Amazon River in the northeast of the state of Amazonas, Negro, Purus, Tapajós, Tefé, Teles Pires, Ucayali, Xingu, and the main course of the Solimões River; above-average rainfall is forecast for the Beni, Içá, Marañon, and Napo river basins; rainfall close to normal in the Curuá Una and Mamoré river basins and the left bank basins of the Amazon River in the northeast and northwest of the state of Pará. The multimodel indicates below-normal rainfall for the coming weeks in the main course of the Amazon River in Brazilian territory, the basins of the Aripuanã, Branco, Curuá Una, Guaporé, Iriri, Ji-Paraná, Juruena, and Mamoré rivers, the 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, and the Teles Pires and Xingu rivers; above-average rainfall on the main course of the Amazon River in Peruvian territory, the Coari, Japurá, Javari, Jutaí, Napo, and Tefé river basins; near-average rainfall on the other river basins in the monitored region.