A multi-model sub-seasonal forecast CPTEC/INPE-FUNCEME produced on 09/22/2026 for the next 7 and 14 days.
The calibrated sub-seasonal multi-model forecast CPTEC/INPE-FUNCEME is generated through scientific cooperation between CPTEC/INPE and FUNCEME, and comes from a set of 4 global models (a Brazilian model, BAM-1.2/CPTEC, and three US models, CFSv2/NCEP, GEFSv12/NCEP and ESRL/NOAA, the latter three from the SubX project). Brazilian model, BAM-1.2/CPTEC, and three US models, CFSv2/NCEP, GEFSv12/NCEP, and ESRL/NOAA, the latter three from the SubX project). The forecast precipitation anomalies are determined in relation to the climatological period from 1999 to 2016. The outputs for the 7 and 14-day forecast intervals are shown below, detailing the forecast behavior of the basins of interest.
Forecast for the next 7 days
The figure shows the forecast for the 7-day interval between 09/23/2026 and 09/29/2026, precipitation deficit forecast (orange) along the main course of the Amazon River in Brazilian territory, and in the watersheds of the Abacaxis, Aripuanã, Beni, Branco, Curuá Una, and Guaporé rivers, Iriri Ji-Paraná, Juruá, Juruena, Madeira, and Mamoré rivers; the left-bank basins of the Amazon River in the northeast of the state of Amazonas and the northeast of the state of Pará; the Tapajós, Teles Pires, Xingu, and Ucayali river basins; and the main course of the Solimões River. Rainfall close to climatological norms (white) is forecast for the remaining river basins.
Forecast for the next 14 days
The figure shows the prognosis for the 7-day interval between 09/30/2026 and 10/06/2026, precipitation deficit forecast (orange) over the main course of the Amazon River in Brazilian territory, and the river basins of the Abacaxis, Aripuanã, Branco, Curuá Una, Ji-Paraná, Juruá, and Madeira rivers; the left-bank basins of the Amazon River in the northeast of the state of Amazonas; the northeast and northwest of the state of Pará; and the Negro, Tapajós, Tefé, and Ucayali river basins. Rainfall close to climatological norms (white) is forecast for the remaining river basins.