The climatology of the period under analysis indicates rainfall with records varying between 145 and 166 mm being considered normal (reference quantiles 42.5% and 57.5%). On January 21, 2026, 79 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 -2.2, classifies the basin as very dry condition. In the coming weeks, climate behavior indicates a increase in rainfall volumes, the sub-seasonal forecast model suggests very dry behavior or a tending to be extremely dry.