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Rio Grande De Patillas near Patillas water level

River gauge, Rio Grande De Patillas, Puerto Rico, United States

Directions

Right now

Normal for late October

Water level

4.63ft Steady over the last 24 hours

Flow
8.9 cfs
10 20 Highest onrecord 24.36 ft Minor floodstage 10.00 ft

History

History
456ftOct 16Oct 17Oct 18Oct 20Oct 21456ftOct 16Oct 18Oct 21
46810ftSep 22Sep 29Oct 6Oct 13Oct 21Minor flood stage46810ftSep 22Oct 6Oct 21Minor flood stage
35810ftNov 2025Feb 2026May 2026Jul 2026Oct 2026Minor flood stage35810ftNov 2025May 2026Oct 2026Minor flood stage
46ftJanMarMayJulSepNov202646ftJanAprJulOct2026

20252026

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

What this means

The Rio Grande De Patillas near Patillas is at 4.63 ft, in the normal range for late October.

That puts it 0.67 ft below the median of 5.30 ft for late October, based on 37 years of readings. It is 5.37 ft below the flood stage of 10.00 ft. A year ago it stood at 4.59 ft (+0.04 ft).

The level has held steady over the past 24 hours. In the last month it has stayed between 4.57 ft and 5.70 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 37 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
5.30 ft0.67 ft below the median for this date
Normal for this date
3.26 ft – 6.17 ft8 years in 10 fall in this range (37 years of records)
Same day last year
4.59 ft+0.04 ft
Lowest and highest in 30 days
4.57 ft – 5.70 ft
Lowest and highest in 12 months
4.54 ft – 6.04 ft
Highest on record
24.36 ftSeptember 21, 1998

Floating and fishing near Rio Grande De Patillas near Patillas

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 10.00 ft, 5.37 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

22.00 ft
The river will rise above the bridge just below Sandra's Pool. The municipal road next to the bridge might become impassable too.
10.00 ft
Road PR-184 becomes impassable at Barrio Jagual./ OMS 9/2023
4.63 ft
Right now

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

Highest crests on record

RankLevelDate
124.36 ftSeptember 21, 1998
224.06 ftJanuary 5, 1992
322.57 ftSeptember 19, 2022
422.55 ftSeptember 10, 1996
521.00 ftSeptember 21, 2008
617.49 ftJuly 11, 1993
716.45 ftJune 2, 2024
816.38 ftSeptember 20, 2017
916.38 ftSeptember 20, 2017
1015.20 ftAugust 31, 1979

Weather at the gauge

Rain in the last 3 days: 0.23 in. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 88° 74° 0.02 in, 35% Wind 7 mph
21 Wed 86° 76° 0.07 in, 52% Wind 8 mph
22 Thu 86° 75° 0.16 in, 63% Wind 7 mph
23 Fri 86° 74° 0.21 in, 73% Wind 9 mph
24 Sat 84° 75° 0.18 in, 84% Wind 10 mph
25 Sun 86° 77° 0.18 in, 83% Wind 9 mph
26 Mon 85° 77° 0.22 in, 82% Wind 9 mph

Forecast: Open-Meteo

Sunrise 06:20 AM Sunset 05:59 PM Daylight 11 hr, 39 min Waxing gibbous 75%

Map

Other gauges on the Rio Grande De Patillas

Gauge Level Compared with normal 24 hours Distance
Rio Grande De Patillas below Lago PatillasCanal gauge, Rio Grande De Patillas 4.33 ft Low ±0 1.4 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Canal De Patillas at ForebayCanal gauge, Canal De Patillas 1.57 ft Normal ±0 1.1 mi
Rio Marin near PatillasRiver gauge, Rio Marin 6.52 ft Normal −0.02 ft 1.5 mi
Canal De Patillas above Guayama Filtration PlantCanal gauge, Canal De Patillas 2.63 ft High −0.01 ft 5.8 mi
Canal De Patillas below Guayama Filtration PlantCanal gauge, Canal De Patillas 1.43 ft Normal −0.01 ft 5.8 mi
Canal De Guamani Oeste at Highway 15 GuayamaCanal gauge, Canal De Guamani Oeste 1.34 ft Normal −0.04 ft 5.9 mi
Rio Maunabo at LizasRiver gauge, Rio Maunabo 3.65 ft Normal −0.06 ft 6.1 mi
Rio Grande De Loiza at Quebrada ArenasRiver gauge, Rio Grande De Loiza 5.07 ft Normal −0.04 ft 7 mi
Aes Intake Canal at Canal De Patillas, GuayamaCanal gauge, Aes Intake Canal 1.45 ft Normal −0.03 ft 8 mi

Questions and answers

How does the Rio Grande De Patillas near Patillas compare with last year?

It is 0.04 ft higher than on the same day last year, when the reading was 4.59 ft.

What is flood stage for the Rio Grande De Patillas near Patillas?

The official flood stage is 10.00 ft. The level is currently 5.37 ft below it.

What is a normal level for the Rio Grande De Patillas near Patillas in late October?

The median for late October is 5.30 ft. In 8 years out of 10 the reading falls between 3.26 ft and 6.17 ft, based on 37 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 Patillas near Patillas today?

On Oct 21, 2026, 03:00 AM AST, the water level was 4.63 ft. Steady over the last 24 hours.

Is Rio Grande De Patillas near Patillas rising or falling?

Steady over the last 24 hours. Down 0.22 ft over the last 7 days.

Is the level of Rio Grande De Patillas near Patillas normal?

Normal for late October. Compared with 37 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:50092000 (Agency page)
Coordinates
18.03417, -66.03250 (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

ParameterLast valueTime (UTC)Quality
Water level 4.63 ft 2026-10-21 07:00 Provisional
Flow 8.9 cfs 2026-10-21 07:00 Provisional

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How to cite

U.S. Geological Survey: Rio Grande De Patillas near Patillas (usgs:50092000). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-grande-de-patillas-near-patillas

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.