Rio Guajataca below Lago Guajataca water level

Name: Rio Guajataca below Lago Guajataca water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Rio Guajataca, Puerto Rico, United States

Directions

Very high for late October

Water level

7.83ft Up 0.14 ft over the last 24 hours

Measured Oct 21, 2026, 01:45 AM AST (32 min ago)

Flow: 422 cfs

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

High water at Rio Guajataca below Lago Guajataca: the latest reading is 7.83 ft, well above normal for late October.

The median for late October is 5.13 ft, based on 20 years of readings, so the river stage is 2.70 ft above typical. On the same day last year the reading was 5.21 ft, a difference of +2.62 ft.

It is on the way up, by 0.14 ft over the past 24 hours. If the rise continues, low-lying paths and riverside parking can go under water. The 30-day range is 5.11 ft – 7.86 ft.

That stands out in fall, when many rivers are usually near their lowest.

Compared with 20 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 5.13 ft2.70 ft above the median for this date
Normal for this date: 3.99 ft – 7.13 ft8 years in 10 fall in this range (20 years of records)
Same day last year: 5.21 ft+2.62 ft
Lowest and highest in 30 days: 5.11 ft – 7.86 ft
Lowest and highest in 12 months: 5.11 ft – 7.82 ft

Staying safe in high water

Flood stage is only the first threshold. Above it the National Weather Service sets moderate and major flood stages, and the forecast crest tells you which of those the river is expected to reach.

Upstream gauges on the same river usually show a rise first, which is a useful early warning.

Weather at the gauge

Rain in the last 3 days: 0.53 in. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 86° 70° 0.13 in, 100% Wind 4 mph

21 Wed 89° 68° 0.10 in, 84% Wind 5 mph

22 Thu 84° 71° 0.61 in, 88% Wind 5 mph

23 Fri 88° 72° 0.02 in, 68% Wind 6 mph

24 Sat 88° 72° 0.40 in, 71% Wind 8 mph

25 Sun 87° 72° 0.18 in, 70% Wind 4 mph

26 Mon 87° 71° 0.31 in, 80% Wind 6 mph

Forecast: Open-Meteo

Sunrise 06:24 AM Sunset 06:02 PM Daylight 11 hr, 38 min Waxing gibbous 75%

Map

Other gauges on the Rio Guajataca

Gauge	Level	Compared with normal	24 hours	Distance
Rio Guajataca at LaresRiver gauge, Rio Guajataca	8.32 ft	Very high	−0.02 ft	8 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Canal De Derivacion at Lago De GuajatacaCanal gauge, Canal De Derivacion	3.27 ft	Normal	−0.13 ft	0.1 mi
Canal Principal Diversion below Forebay, IsabelaCanal gauge, Canal Principal Diversion	5.22 ft	Very high	−0.01 ft	7 mi
Rio Camuy near BayaneyRiver gauge, Rio Camuy	5.76 ft	Normal	−0.83 ft	7 mi
Canal De Moca above Lago Regulador E13 IsabelaCanal gauge, Canal De Moca	1.65 ft	Low	−0.13 ft	8 mi
Canal Principal Diversion above Lago GuerreroCanal gauge, Canal Principal Diversion	25.1 cfs	Normal	+1.3 cfs	10 mi
Rio Culebrinas at Highway 404 near MocaRiver gauge, Rio Culebrinas	10.28 ft	Normal	−1.13 ft	11 mi
Rio Grande De Anasco near San SebastianRiver gauge, Rio Grande De Anasco	2.65 ft	Low	−0.64 ft	11 mi
Rio Tanama near UtuadoRiver gauge, Rio Tanama	3.29 ft	Very low	−0.05 ft	12 mi

Questions and answers

Is the Rio Guajataca below Lago Guajataca higher than last year?

Yes, it is 2.62 ft higher than on the same day last year, when the reading was 5.21 ft.

What is a normal level for the Rio Guajataca below Lago Guajataca in late October?

The median for late October is 5.13 ft. In 8 years out of 10 the reading falls between 3.99 ft and 7.13 ft, based on 20 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Rio Guajataca below Lago Guajataca today?

On Oct 21, 2026, 01:45 AM AST, the water level was 7.83 ft. Up 0.14 ft over the last 24 hours.

Is Rio Guajataca below Lago Guajataca rising or falling?

Up 0.14 ft over the last 24 hours. Up 2.66 ft over the last 7 days.

Is the level of Rio Guajataca below Lago Guajataca normal?

Very high for late October. Compared with 20 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:50011200 (Agency page)
Coordinates: 18.40028, -66.92778 (WGS84)
Vertical datum: PRVD02
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	7.83 ft	2026-10-21 05:45	Provisional
Flow	422 cfs	2026-10-21 05:45	Provisional

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How to cite

U.S. Geological Survey: Rio Guajataca below Lago Guajataca (usgs:50011200). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-guajataca-below-lago-guajataca

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer