A multi-model sub-seasonal forecast CPTEC/INPE-FUNCEME produced on 09/29/2026 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 09/30/2026 and 10/06/2026, forecast of precipitation deficits (orange) over the main course of the Amazon River in Brazilian territory, the Abacaxis, Branco, Curuá Una, and Iriri 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 and Tapajós river basins. Forecast of positive precipitation anomalies (blue) over the Guaporé River basin and in isolated areas of the Coari, Juruena, Tefé, and Ucayali river basins. Precipitation near 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 10/07/2026 and 10/13/2026, forecast of a predominance of precipitation deficits (orange) over much of the monitored region. Forecast of positive precipitation anomalies (blue) concentrated at the mouth of the Jutaí River. Rainfall close to climatological norms (white) is forecast for the river basins of the Beni, Guaporé, Içá, Mamoré, Marañon, and the main course of the Solimões River.