Rio Piedras at Hato Rey water level

Name: Rio Piedras at Hato Rey 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 Piedras, Puerto Rico, United States

Directions

Very low for mid-October

Water level

4.01ft Up 0.38 ft over the last 24 hours

Measured Oct 20, 2026, 01:15 AM AST (16 min ago)

Flow: 38.8 cfs

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %) Minor flood stage

What this means

The Rio Piedras at Hato Rey is running far below normal at 4.01 ft.

That puts it 1.07 ft below the median of 5.08 ft for mid-October, based on 27 years of readings. It is 10.99 ft below the flood stage of 15.00 ft. A year ago it stood at 3.91 ft (+0.10 ft).

It has risen 0.38 ft over the past 24 hours. In the last month it has stayed between 3.55 ft and 8.17 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 27 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 5.08 ft1.07 ft below the median for this date
Normal for this date: 4.15 ft – 5.77 ft8 years in 10 fall in this range (27 years of records)
Same day last year: 3.91 ft+0.10 ft
Lowest and highest in 30 days: 3.55 ft – 8.17 ft
Lowest and highest in 12 months: 3.52 ft – 6.52 ft
Highest on record: 22.91 ftSeptember 20, 2017

Floating and fishing near Rio Piedras at Hato Rey

Low water exposes gravel bars that make good wading access, but some boat ramps may be left high and dry.

Flood stage here is 15.00 ft, 10.99 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

15.24 ft: The following roads were flooded in Bo. Obrero: Avenida Kennedy, Avenida Barbosa, Avenida Munoz Rivera, AvenidaRoosevelt. Avenida Simon Madera, Avenida de Diego, and Calle Notre Dame in University Gardens.
4.01 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	22.91 ft	September 20, 2017
2	22.47 ft	November 15, 2009
3	22.11 ft	September 10, 1996
4	21.17 ft	May 23, 2004
5	20.77 ft	June 17, 1970
6	20.56 ft	December 11, 1975
7	20.55 ft	November 29, 1977
8	20.45 ft	August 23, 2011
9	20.27 ft	May 21, 2013
10	20.27 ft	December 12, 1981

Weather at the gauge

Rain in the last 3 days: 0.24 in. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 90° 76° 0.09 in, 100% Wind 6 mph

20 Tue 89° 76° 0.05 in, 92% Wind 7 mph

21 Wed 91° 75° 0.09 in, 90% Wind 7 mph

22 Thu 90° 77° 0.04 in, 82% Wind 7 mph

23 Fri 89° 77° 0.01 in, 60% Wind 8 mph

24 Sat 93° 76° – Wind 9 mph

25 Sun 93° 78° 0.12 in, 49% Wind 6 mph

Forecast: Open-Meteo

Sunrise 06:20 AM Sunset 05:59 PM Daylight 11 hr, 39 min First quarter 65%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Quebrada Josefina at Pinero AvenueRiver gauge, Quebrada Josefina	1.50 ft	Below flood stage	+0.03 ft	0.4 mi
Qda. Margarita at Caparra Inter. near GuaynaboRiver gauge, Qda. Margarita	2.74 ft	Very low	+0.04 ft	2.3 mi
Quebrada Santa Catalina near GuaynaboRiver gauge, Quebrada Santa Catalina	0.93 ft	Very low	−0.01 ft	3.2 mi
Rio Grande De Loiza below Loiza DamsiteRiver gauge, Rio Grande De Loiza	2.75 ft	Low	+0.06 ft	6 mi
Quebrada Grande at Bo. Dos BocasRiver gauge, Quebrada Grande	4.13 ft	Low	−0.09 ft	7 mi
Rio De Bayamon near BayamonRiver gauge, Rio De Bayamon	1.79 ft	Low	−0.01 ft	7 mi
Rio Canas at Rio CanasRiver gauge, Rio Canas	9.00 ft	Very low	−0.09 ft	8 mi
Rio Bairoa above Bairoa, CaguasRiver gauge, Rio Bairoa	4.23 ft	Low	−0.01 ft	11 mi

Questions and answers

How does the Rio Piedras at Hato Rey compare with last year?

It is 0.10 ft higher than on the same day last year, when the reading was 3.91 ft.

What is flood stage for the Rio Piedras at Hato Rey?

The official flood stage is 15.00 ft. The level is currently 10.99 ft below it.

What is a normal level for the Rio Piedras at Hato Rey in mid-October?

The median for mid-October is 5.08 ft. In 8 years out of 10 the reading falls between 4.15 ft and 5.77 ft, based on 27 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 Piedras at Hato Rey today?

On Oct 20, 2026, 01:15 AM AST, the water level was 4.01 ft. Up 0.38 ft over the last 24 hours.

Is Rio Piedras at Hato Rey rising or falling?

Up 0.38 ft over the last 24 hours. Up 0.39 ft over the last 7 days.

Is the level of Rio Piedras at Hato Rey normal?

Very low for mid-October. Compared with 27 years of daily readings for this time of year.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:50049100 (Agency page)
Coordinates: 18.40955, -66.06933 (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	4.01 ft	2026-10-20 05:15	Provisional
Flow	38.8 cfs	2026-10-20 05:15	Provisional

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How to cite

U.S. Geological Survey: Rio Piedras at Hato Rey (usgs:50049100). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-piedras-at-hato-rey

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