Individual analysis by river basin
Updated on April 22, 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 157 and 179 mm being considered normal (reference quantiles 42.5% and 57.5%). On April 22, 2026, 143 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 -0.7, classifies the basin as tendency to dry contition. In the coming weeks, climate behavior indicates a decrease in rainfall volumes, the sub-seasonal forecast model suggests dry behavior or a tending to be very dry.
Climatology
157 mm - 179 mm
Observed 30 days
143 mm
Anomaly index
-0.7
Basin classification
tendency to dry contition
Forecast
dry behavior or a tending to be very dry