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 June 30 to July 29, 2026, rainfall below climatological norms resulted in a precipitation deficit along the main course of the Amazon River in Brazilian and Peruvian territory, in the watersheds of the Abacaxis, Branco, Içá, Japurá, and Juruá rivers, in the watersheds 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, the Napo, Negro, and Ucayali river basins and the main course of the Solimões River; rainfall above the climatological average was recorded in the Aripuanã, Coari, Guaporé, Iriri, Javari, Juruena, Madeira, Mamoré, Tapajós, Tefé, Teles Pires, and Xingu river basins; rainfall close to normal levels was recorded in the river basins of the Beni, Curuá Una, Ji-Paraná, Jutaí, Marañon, and Purus rivers. The multi-model indicates, for the period from July 29 to August 4, 2026, forecast of positive precipitation anomalies over the western and southwestern parts of the monitored region, along the main course of the Amazon River in Peruvian territory, and in the watersheds of the Aripuanã, Beni, Guaporé, Içá, Japurá, Javari, Juruá, Jutaí, Madeira, Napo, Purus, Tefé, and Ucayali rivers. Forecast of a precipitation deficit concentrated in the north and northeast of the monitored area, along the main course of the Amazon River in Brazilian territory, the Branco and Curuá Una river basins, the basins on the left bank of the Amazon River in the northeast of the state of Amazonas, the northeast and northwest of the state of Pará, and the Negro River basin. Rainfall close to climatological norms (white) is forecast for the remaining river basins.