Individual analysis by river basin

Basins on the left bank of the Amazon River (north-estern of the Pará State)

Updated on October 29, 2025

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 29 and 38 mm being considered normal (reference quantiles 42.5% and 57.5%). On October 29, 2025, 24 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 -0.9, classifies the basin as tendency to 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 dry.

Climatology

29 mm - 38 mm

Observed 30 days

24 mm

Anomaly index

-0.9

Basin classification

tendency to dry contition

Forecast

dry behavior or a tending to be dry