PUERTO RICO FLOW REPORT

Last Updated: February 13, 2026

Puerto Rico's rivers are experiencing varied streamflow conditions, presenting a mixed hydrological picture for water enthusiasts. The Rio Culebrinas at the Margarita Damsite near Aguada stands out with an exceptional streamflow of 1640 cubic feet per second (cfs), marking a significant 47.75 cfs increase in the last 24 hours, which is 188.62% above normal. This could indicate potential flooding conditions and affect popular whitewater spots in the region. Additionally, the Rio Grande De Loiza at Caguas has seen a dramatic surge, with streamflow changes of 330.75 cfs in the past day, reaching a flow rate of 311 cfs, twice the normal rate. This could impact surrounding cities and ecosystems. Conversely, the Rio Grande De Arecibo near San Pedro reports flows at 30.97% below average, suggesting a flow drought that could influence river activities and local water supply.

The Rio de la Plata at Comerio also experienced a substantial rise with a 367.86 cfs change, reaching a flow of 313 cfs, which is 287.66% of the normal flow, indicating a potential for flooding in the adjacent areas. Cities like San Lorenzo and Gurabo are witnessing considerable increases in river heights, with the Rio Grande De Loiza and Rio Gurabo at Gurabo exceeding 100% of their normal flow. Water enthusiasts should remain vigilant of these fluctuations, especially those near the Rio Grande de Manati at Ciales and the Rio Guanajibo near Hormigueros, which also report high streamflow percentages at 78.72% and 114.63% of normal, respectively. While some rivers reveal surges indicating flooding conditions, others like the Rio Grande De Arecibo at Utuado reflect a moderate streamflow at 48.93% of normal. These data points underscore the dynamic and varied nature of streamflows across Puerto Rico's rivers, emphasizing the need for enthusiasts and residents to stay informed about current conditions for safety and enjoyment.