Individual analysis by river basin
Updated on March 25, 2026
Accumulated precipitation vs climatology
30 days
Comparison between climatological quantiles and observed accumulation.
Anomaly and trend
14 to 28 days
Anomaly, forecast and observed indicators.
Basin highlights
The climatology of the period under analysis indicates rainfall with records varying between 230 and 256 mm being considered normal (reference quantiles 42.5% and 57.5%). On March 25, 2026, 186 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 -1.4, classifies the basin as dry condition. 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.
Climatology
230 mm - 256 mm
Observed 30 days
186 mm
Anomaly index
-1.4
Basin classification
dry condition
Forecast
dry behavior or a tending to be dry