The climatology of the period under analysis indicates rainfall with records varying between 267 and 290 mm being considered normal (reference quantiles 42.5% and 57.5%). On March 18, 2026, 122 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 -3.0, classifies the basin as extremely dry. In the coming weeks, climate behavior indicates a increase in rainfall volumes, the sub-seasonal forecast model suggests extremely dry or tending to be extremely dry.