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 2025. Between December 2 to December 31, 2025, below-average rainfall caused precipitation deficits along the main course of the Amazon River in Brazilian and Peruvian territories, as well as in the watersheds of the Abacaxis, Branco, Coari, Içá, Iriri, Japurá, Javari, Juruá, Juruena, Jutaí, Marañon, the left bank basins of the Amazon River in northeastern Pará State, Napo, Negro, Tapajós, Tefé, Teles Pires, Ucayali, Xingu, and the main course of the Solimões River; excess precipitation was recorded in the Beni and Mamoré river basins and the left bank basins of the Amazon River in northeastern Amazonas State; near-normal rainfall over the Aripuanã, Curuá Una, Guaporé, Ji-Paraná, and Madeira river basins, basins on the left bank of the Amazon River in the northwest of the state of Pará, and Purus. The multimodel indicates that rainfall below climatological norms is expected to prevail over much of the monitored region in the coming weeks; rainfall above climatological norms is expected in the second week over the main course of the Amazon River in Peruvian territory and the Içá, Japurá, Ji-Paraná, Marañon, and Napo river basins.