The climatology of the period under analysis indicates rainfall with records varying between 137 and 165 mm being considered normal (reference quantiles 42.5% and 57.5%). On September 16, 2026, 130 mm of average accumulated precipitation was observed over the basin in 30 days, the calculation of the average of the categorized anomaly index in the basin area the value of -0.8, classifies the basin as tendency to dry contition. In the coming weeks, climate behavior indicates a increase in rainfall volumes, the sub-seasonal forecast model suggests dry behavior or a tending to be dry.