Individual analysis by river basin

Purus River Basin

Updated on April 15, 2026

Accumulated precipitation vs climatology

30 days
chart

Comparison between climatological quantiles and observed accumulation.

Anomaly and trend

14 to 28 days
chart

Anomaly, forecast and observed indicators.

Basin highlights

The climatology of the period under analysis indicates rainfall with records varying between 230 and 252 mm being considered normal (reference quantiles 42.5% and 57.5%). On April 15, 2026, 179 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 -1.3, classifies the basin as dry condition. In the coming weeks, climate behavior indicates a decrease in rainfall volumes, the sub-seasonal forecast model suggests behavior close to normality.

Climatology

230 mm - 252 mm

Observed 30 days

179 mm

Anomaly index

-1.3

Basin classification

dry condition

Forecast

behavior close to normality