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Rio Jacaguas at Juana Diaz water level

River gauge, Rio Jacaguas, Puerto Rico, United States

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Right now

Very low for mid-October

Water level

4.78ft Down 0.14 ft over the last 24 hours

Flow
13.9 cfs
10 20 30 Highest onrecord 30.30 ft Minor floodstage 14.00 ft

History

History
567ftOct 13Oct 14Oct 16Oct 18Oct 19567ftOct 13Oct 16Oct 19
567ftSep 20Sep 27Oct 4Oct 12Oct 19567ftSep 20Oct 4Oct 19
468ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026468ftOct 2025Apr 2026Oct 2026
468ftJanMarMayJulSepNov2026468ftJanAprJulOct2026

20252026

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

What this means

At 4.78 ft, the Rio Jacaguas at Juana Diaz is far below normal for mid-October.

That puts it 1.46 ft below the median of 6.24 ft for mid-October, based on 35 years of readings. It is 9.22 ft below the flood stage of 14.00 ft. A year ago it stood at 5.36 ft (−0.58 ft).

The level is falling, down 0.14 ft over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. Over the past 30 days it has moved between 4.37 ft and 4.94 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
6.24 ft1.46 ft below the median for this date
Normal for this date
5.43 ft – 7.24 ft8 years in 10 fall in this range (35 years of records)
Same day last year
5.36 ft−0.58 ft
Lowest and highest in 30 days
4.37 ft – 4.94 ft
Lowest and highest in 12 months
4.17 ft – 7.16 ft
Highest on record
30.30 ftSeptember 20, 2017

What the stage means on the water

Low water means more dragging on shallow riffles and slower floats. Fish crowd into the deeper runs, and warm, low water stresses them, so play and release them quickly.

The National Weather Service puts flood stage for this gauge at 14.00 ft, still 9.22 ft away.

Highest crests on record

RankLevelDate
130.30 ftSeptember 20, 2017
229.42 ftOctober 7, 1985
328.71 ftSeptember 22, 1998
426.97 ftNovember 27, 1987
525.39 ftSeptember 13, 2011
624.65 ftNovember 13, 2003
723.49 ftSeptember 19, 2022
822.81 ftJanuary 6, 1992
922.00 ftSeptember 10, 1996
1020.60 ftAugust 14, 2024

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° 76° 0.14 in, 94% Wind 9 mph
18 Sun 87° 75° 0.05 in, 100% Wind 6 mph
19 Mon 88° 75° 0.06 in, 100% Wind 8 mph
20 Tue 88° 74° 0.09 in, 88% Wind 7 mph
21 Wed 87° 74° 0.04 in, 57% Wind 7 mph
22 Thu 85° 76° 0.05 in, 78% Wind 8 mph
23 Fri 88° 76° 0.09 in, 72% Wind 5 mph

Forecast: Open-Meteo

Sunrise 06:21 AM Sunset 06:02 PM Daylight 11 hr, 41 min First quarter 63%

Map

Other gauges on the Rio Jacaguas

Gauge Level Compared with normal 24 hours Distance
Rio Jacaguas above Lago GuayabalRiver gauge, Rio Jacaguas 4.30 ft Very low +0.04 ft 4.3 mi
Rio Jacaguas below Highway 149 near VillalbaRiver gauge, Rio Jacaguas 4.85 ft No reference yet +0.47 ft 2.0 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Canal De Juana Diaz at Piedra Aguzada near Juana DiaCanal gauge, Canal De Juana Diaz 1.83 ft Normal +0.02 ft 1.8 mi
Canal De Juana Diaz at Lago GuayabalCanal gauge, Canal De Juana Diaz 1.68 ft Very high +0.02 ft 2.0 mi
Rio Inabon at Real AbajoRiver gauge, Rio Inabon 1.62 ft Very low +0.13 ft 4.1 mi
Rio Cerrillos below Lago Cerrillos near PonceRiver gauge, Rio Cerrillos 0.92 ft Low ±0 4.8 mi
Rio Toa Vaca above Lago Toa VacaRiver gauge, Rio Toa Vaca 6.57 ft Very high +3.98 ft 6.1 mi
Rio Portugues at Parque Ceremonial Tibes near PonceRiver gauge, Rio Portugues 2.26 ft Very low ±0 7 mi
Rio Cerrillos above Lago Cerrillos near PonceRiver gauge, Rio Cerrillos 0.47 ft Very low −0.05 ft 8 mi
Canal De Juana Diaz at Paso Seco near Santa IsabelCanal gauge, Canal De Juana Diaz 1.40 ft Normal −0.14 ft 8 mi

Questions and answers

How does the Rio Jacaguas at Juana Diaz compare with last year?

It is 0.58 ft lower than on the same day last year, when the reading was 5.36 ft.

What is flood stage for the Rio Jacaguas at Juana Diaz?

The official flood stage is 14.00 ft. The level is currently 9.22 ft below it.

What is a normal level for the Rio Jacaguas at Juana Diaz in mid-October?

The median for mid-October is 6.24 ft. In 8 years out of 10 the reading falls between 5.43 ft and 7.24 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 Jacaguas at Juana Diaz today?

On Oct 19, 2026, 07:00 PM AST, the water level was 4.78 ft. Down 0.14 ft over the last 24 hours.

Is Rio Jacaguas at Juana Diaz rising or falling?

Down 0.14 ft over the last 24 hours. Up 0.20 ft over the last 7 days.

Is the level of Rio Jacaguas at Juana Diaz normal?

Very 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:50111500 (Agency page)
Coordinates
18.05430, -66.51103 (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 4.78 ft 2026-10-19 23:00 Provisional
Flow 13.9 cfs 2026-10-19 23:00 Provisional

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How to cite

U.S. Geological Survey: Rio Jacaguas at Juana Diaz (usgs:50111500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-jacaguas-at-juana-diaz

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.