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 September 16 to October 15, 2025, rainfall below climatological norms prevailed over the northwest of the monitored region, characterized by a precipitation deficit over the main course of the Amazon River in Brazilian and Peruvian territories, the hydrographic basins of the Aripuanã, Branco, Coari, Guaporé, Içá, Japurá, Javari, Ji-Paraná, Juruá, Jutaí, Marañon, the left bank basins of the Amazon River in the northeast and northwest of the state of Pará, Napo, Negro, Tefé, Ucayali, Xingu, and the main course of the Solimões River; rainfall above climatological norms is forecast for the Abacaxis, Iriri, and Tapajós river basins; rainfall close to normal in the Beni, Curuá Una, Juruena, Madeira, and Mamoré river basins, the left bank basins of the Amazon River in the northeast of the state of Amazonas, and the Purus and Teles Pires rivers. The multimodel indicates below-average rainfall for the coming weeks on the main course of the Amazon River in Brazilian territory, the Abacaxis, Aripuanã, Beni, Curuá Una, Guaporé, Iriri, Ji-Paraná, Juruena, Jutaí, Madeira, Mamoré, the left bank basins of the Amazon River in the northeast and northwest of the state of Pará, Napo, Purus, Tapajós, Xingu, and the main course of the Solimões River. There is no forecast for rainfall above climatological norms in the monitored area.