Rio Grande De Loiza below Loiza Damsite water level

Name: Rio Grande De Loiza below Loiza Damsite 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 Grande De Loiza, Puerto Rico, United States

Directions

Low for mid-October

Water level

2.73ft Up 0.05 ft over the last 24 hours

Measured Oct 20, 2026, 04:45 AM AST (1 hour ago)

Flow: 4.1 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 Grande De Loiza below Loiza Damsite is running below normal at 2.73 ft.

The median for mid-October is 3.66 ft, based on 35 years of readings, so the river stage is 0.93 ft below typical. It is 19.27 ft below the flood stage of 22.00 ft. On the same day last year the reading was 2.69 ft, a difference of +0.04 ft.

It has risen 0.05 ft over the past 24 hours. In the last month it has stayed between 2.57 ft and 6.74 ft.

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

Compared with 35 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 3.66 ft0.93 ft below the median for this date
Normal for this date: 2.68 ft – 5.60 ft8 years in 10 fall in this range (35 years of records)
Same day last year: 2.69 ft+0.04 ft
Lowest and highest in 30 days: 2.57 ft – 6.74 ft
Lowest and highest in 12 months: 1.31 ft – 8.85 ft
Highest on record: 49.31 ftSeptember 10, 1996

Floating and fishing near Rio Grande De Loiza below Loiza Damsite

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

Flood stage here is 22.00 ft, 19.27 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

26.94 ft: Water beneath the houses in Canovanas past the confluences of Rio Canovanas and Rio Canovanillas
23.61 ft: River out of its banks along Road #3 at town entrance in Carolina, Flooding also occurring in the parking lot of the Roberto Clemente Coliseum.Roads #853 and #858 blocked
2.73 ft: Right now

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

Highest crests on record

Rank	Level	Date
1	49.31 ft	September 10, 1996
2	47.93 ft	September 20, 2017
3	47.01 ft	October 14, 1997
4	44.65 ft	September 19, 2022
5	39.57 ft	November 27, 1987
6	37.30 ft	September 15, 2004
7	35.24 ft	July 30, 2020
8	34.38 ft	August 23, 2000
9	34.33 ft	May 20, 2011
10	34.30 ft	September 21, 2008

Weather at the gauge

Rain in the last 3 days: 0.19 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 89° 74° 0.09 in, 90% Wind 6 mph

18 Sun 89° 73° 0.06 in, 100% Wind 5 mph

19 Mon 88° 73° 0.12 in, 100% Wind 6 mph

20 Tue 90° 73° 0.03 in, 93% Wind 7 mph

21 Wed 90° 73° 0.06 in, 66% Wind 7 mph

22 Thu 87° 74° 0.12 in, 74% Wind 9 mph

23 Fri 89° 74° 0.33 in, 51% Wind 8 mph

Forecast: Open-Meteo

Sunrise 06:20 AM Sunset 05:59 PM Daylight 11 hr, 39 min First quarter 67%

Map

Other gauges on the Rio Grande De Loiza

Gauge	Level	Compared with normal	24 hours	Distance
Rio Grande De Loiza at Quebrada ArenasRiver gauge, Rio Grande De Loiza	5.10 ft	Normal	±0	15 mi
Rio Grande De Loiza at Highway 183 San LorenzoRiver gauge, Rio Grande De Loiza	7.39 ft	Very low	−0.01 ft	11 mi
Rio Grande De Loiza at CaguasRiver gauge, Rio Grande De Loiza	4.37 ft	Very low	−0.06 ft	7 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Quebrada Grande at Bo. Dos BocasRiver gauge, Quebrada Grande	4.08 ft	Very low	−0.06 ft	1.2 mi
Rio Canas at Rio CanasRiver gauge, Rio Canas	8.99 ft	Very low	−0.06 ft	4.2 mi
Rio Piedras at Hato ReyRiver gauge, Rio Piedras	3.81 ft	Very low	+0.19 ft	6 mi
Rio Gurabo at GuraboRiver gauge, Rio Gurabo	5.37 ft	Normal	+1.25 ft	6 mi
Rio Bairoa above Bairoa, CaguasRiver gauge, Rio Bairoa	4.20 ft	Low	−0.03 ft	6 mi
Quebrada Josefina at Pinero AvenueRiver gauge, Quebrada Josefina	1.49 ft	Below flood stage	±0	6 mi
Rio Caguitas at Villa Blanca at CaguasRiver gauge, Rio Caguitas	7.92 ft	Normal	−0.04 ft	7 mi
Rio Canovanas near Campo RicoRiver gauge, Rio Canovanas	2.51 ft	Normal	+0.23 ft	8 mi

Questions and answers

Is the Rio Grande De Loiza below Loiza Damsite higher than last year?

Yes, it is 0.04 ft higher than on the same day last year, when the reading was 2.69 ft.

What is flood stage for the Rio Grande De Loiza below Loiza Damsite?

The official flood stage is 22.00 ft. The level is currently 19.27 ft below it.

What is a normal level for the Rio Grande De Loiza below Loiza Damsite in mid-October?

The median for mid-October is 3.66 ft. In 8 years out of 10 the reading falls between 2.68 ft and 5.60 ft, based on 35 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 Grande De Loiza below Loiza Damsite today?

On Oct 20, 2026, 04:45 AM AST, the water level was 2.73 ft. Up 0.05 ft over the last 24 hours.

Is Rio Grande De Loiza below Loiza Damsite rising or falling?

Up 0.05 ft over the last 24 hours. Down 1.13 ft over the last 7 days.

Is the level of Rio Grande De Loiza below Loiza Damsite normal?

Low for mid-October. Compared with 35 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:50059050 (Agency page)
Coordinates: 18.34227, -66.00598 (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	2.73 ft	2026-10-20 08:45	Provisional
Flow	4.1 cfs	2026-10-20 08:45	Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

<iframe src="https://nivelmap.com/embed/6418?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="Rio Grande De Loiza below Loiza Damsite water level"></iframe>

How to cite

U.S. Geological Survey: Rio Grande De Loiza below Loiza Damsite (usgs:50059050). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-grande-de-loiza-below-loiza-damsite

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