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 220 and 245 mm being considered normal (reference quantiles 42.5% and 57.5%). On March 25, 2026, 147 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 -1.7, classifies the basin as tendency to very 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 very dry.
Climatology
220 mm - 245 mm
Observed 30 days
147 mm
Anomaly index
-1.7
Basin classification
tendency to very dry contition
Forecast
dry behavior or a tending to be very dry