Puerto RicoReservoir
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519.17ft
Down 0.90 ft this week
Sailing
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Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: ESE wind 1 to 6 kt, gusts to 7 kt, high near 89°F. Tuesday: ENE wind 2 to 6 kt, gusts to 7 kt, high near 88°F, thunderstorms possible.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
519.17ft PRVD02
-0.90 ft in 7 days7.09 ft below the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Lago Regulador de Isabela was at 519.17 ft on October 26, falling 0.90 ft over the past week. That is well below normal for October: the typical October level is 526.26 ft, so the lake is 7.09 ft below its usual mark.
Lago Regulador de Isabela covers a stretch of water in Puerto Rico and is classed as a reservoir.
We read the level from USGS gauge 50011088, listed as Lago Regulador De Isabela near Hwy 112 Isabela, PR. Wind and weather come from the National Weather Service grid cell over the lake, so the numbers describe open water rather than the nearest airport.
Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: ESE wind 1 to 6 kt, gusts to 7 kt, high near 89°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Lago Regulador de Isabela was at 519.17 ft on October 26, falling 0.90 ft over the past week. That is well below normal for October: the typical October level is 526.26 ft, so the lake is 7.09 ft below its usual mark.
If Lago Regulador de Isabela is blown out, these are the closest alternatives. Tap through for their conditions.