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 1998 a 2025. Between July 14 to August 12, 2026, rainfall below climatological norms resulted in a precipitation deficit along the main course of the Amazon River in Brazilian and Peruvian territory, as well as in the watersheds of the Abacaxis, Branco, and Coari rivers, Curuá Una, Içá, and Japurá rivers; the left-bank basins of the Amazon River in the northeast of the state of Amazonas and the northeast and northwest of the state of Pará; the Napo, Negro, and Tefé river basins; and the main course of the Solimões River; above-normal rainfall recorded in the watersheds of the Aripuanã, Beni, Iriri, Javari, Ji-Paraná, Juruena, Jutaí, Madeira, Mamoré, Teles Pires, Ucayali, and Xingu rivers; rainfall close to normal levels recorded in the Guaporé, Juruá, Marañon, Purus, and Tapajós river basins. The multi-model indicates, for the period from August 12 to August 18, 2026, forecast of a precipitation deficit concentrated in the north and northeast of the monitored region, along the main course of the Amazon River in Brazilian and Peruvian territories, the watersheds of the Branco, Coari, Curuá Una, Içá, Japurá, and Marañon rivers; the left-bank watersheds of the Amazon River in the northeast of the state of Amazonas and the northeast and northwest of the state of Pará; the watersheds of the Napo, Negro, and Tefé rivers; and the main course of the Solimões River; positive anomalies are forecast for the Aripuanã, Beni, Jutaí, and Mamoré river basins; rainfall close to climatological norms (white) is forecast for the remaining river basins.