Rio Gurabo below El Mango water level

Name: Rio Gurabo below El Mango 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 Gurabo, Puerto Rico, United States

Directions

Very low for mid-October

Water level

7.46ft Up 0.05 ft over the last 24 hours

Measured Oct 18, 2026, 08:00 AM AST (28 min ago)

Flow: 8.2 cfs

History

7 days 30 days 1 year Years compared

20252026

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

What this means

Low water at Rio Gurabo below El Mango: the gauge reads 7.46 ft, far below normal for mid-October.

The median for mid-October is 9.16 ft, based on 32 years of readings, so the river stage is 1.70 ft below typical. It is 8.54 ft below the flood stage of 16.00 ft. On the same day last year the reading was 7.76 ft, a difference of −0.30 ft.

It is on the way up, by 0.05 ft over the past 24 hours. The 30-day range is 7.29 ft – 8.89 ft.

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

Compared with 32 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 9.16 ft1.70 ft below the median for this date
Normal for this date: 7.93 ft – 10.16 ft8 years in 10 fall in this range (32 years of records)
Same day last year: 7.76 ft−0.30 ft
Lowest and highest in 30 days: 7.29 ft – 8.89 ft
Lowest and highest in 12 months: 7.16 ft – 11.11 ft
Highest on record: 24.12 ftSeptember 10, 1996

Paddling and fishing conditions

At low levels, plan for shorter paddling trips and expect to walk your boat through a few shoals.

For reference, flood stage is 16.00 ft.

Highest crests on record

Rank	Level	Date
1	24.12 ft	September 10, 1996
2	23.87 ft	September 20, 2017
3	22.72 ft	September 21, 1998
4	20.76 ft	April 17, 2003
5	20.44 ft	September 15, 2004
6	19.33 ft	August 14, 2024
7	19.20 ft	September 19, 2022
8	19.06 ft	August 22, 2001
9	18.52 ft	November 8, 2020
10	18.43 ft	November 1, 2024

Weather at the gauge

Rain in the last 3 days: 0.13 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 85° 73° 0.23 in, 90% Wind 6 mph

18 Sun 85° 72° 0.43 in, 100% Wind 6 mph

19 Mon 83° 71° 0.27 in, 100% Wind 6 mph

20 Tue 85° 70° 0.09 in, 93% Wind 6 mph

21 Wed 85° 71° 0.03 in, 66% Wind 8 mph

22 Thu 83° 72° 0.17 in, 74% Wind 8 mph

23 Fri 84° 72° 0.47 in, 51% Wind 7 mph

Forecast: Open-Meteo

Sunrise 06:19 AM Sunset 06:00 PM Daylight 11 hr, 42 min First quarter 49%

Map

Other gauges on the Rio Gurabo

Gauge	Level	Compared with normal	24 hours	Distance
Rio Gurabo at GuraboRiver gauge, Rio Gurabo	4.18 ft	Low	+0.01 ft	5.7 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Rio Valenciano near JuncosRiver gauge, Rio Valenciano	2.97 ft	Normal	+0.01 ft	3.0 mi
Rio Humacao at Las PiedrasRiver gauge, Rio Humacao	0.43 ft	Very low	−0.02 ft	4.3 mi
Rio Canovanas near Campo RicoRiver gauge, Rio Canovanas	2.26 ft	Low	+0.01 ft	5.8 mi
Rio Grande De Loiza at Highway 183 San LorenzoRiver gauge, Rio Grande De Loiza	7.50 ft	Low	+0.08 ft	6.0 mi
Rio Blanco at FloridaRiver gauge, Rio Blanco	3.63 ft	Very low	−0.01 ft	7 mi
Rio Cayaguas at Cerro GordoRiver gauge, Rio Cayaguas	6.16 ft	Normal	+0.25 ft	7 mi
Rio Grande De Loiza at CaguasRiver gauge, Rio Grande De Loiza	4.39 ft	Very low	±0	8 mi
Rio Grande near El VerdeRiver gauge, Rio Grande	4.99 ft	High	−0.06 ft	8 mi

Questions and answers

Is the Rio Gurabo below El Mango higher than last year?

No, it is 0.30 ft lower than on the same day last year, when the reading was 7.76 ft.

What is flood stage for the Rio Gurabo below El Mango?

The official flood stage is 16.00 ft. The level is currently 8.54 ft below it.

What is a normal level for the Rio Gurabo below El Mango in mid-October?

The median for mid-October is 9.16 ft. In 8 years out of 10 the reading falls between 7.93 ft and 10.16 ft, based on 32 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 Gurabo below El Mango today?

On Oct 18, 2026, 08:00 AM AST, the water level was 7.46 ft. Up 0.05 ft over the last 24 hours.

Is Rio Gurabo below El Mango rising or falling?

Up 0.05 ft over the last 24 hours. Down 1.43 ft over the last 7 days.

Is the level of Rio Gurabo below El Mango normal?

Very low for mid-October. Compared with 32 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:50055750 (Agency page)
Coordinates: 18.23415, -65.88533 (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	7.46 ft	2026-10-18 12:00	Provisional
Flow	8.2 cfs	2026-10-18 12:00	Provisional

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How to cite

U.S. Geological Survey: Rio Gurabo below El Mango (usgs:50055750). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-gurabo-below-el-mango

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