The climatology of the period under analysis indicates rainfall with records varying between 142 and 167 mm being considered normal (reference quantiles 42.5% and 57.5%). On January 28, 2026, 188 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 1.0, classifies the basin as rainy. In the coming weeks, climate behavior indicates a increase in rainfall volumes, the sub-seasonal forecast model suggests rainy behavior or a tending to be very rainy.