Rio Tanama at Charco Hondo water level

Name: Rio Tanama at Charco Hondo 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 Tanama, Puerto Rico, United States

Directions

Low for mid-October

Water level

4.28ft Down 0.83 ft over the last 24 hours

Measured Oct 20, 2026, 02:30 AM AST (1 hour ago)

Flow: 152 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 Tanama at Charco Hondo: the gauge reads 4.28 ft, below normal for mid-October.

That puts it 0.39 ft below the median of 4.67 ft for mid-October, based on 29 years of readings. It is 6.72 ft below the flood stage of 11.00 ft. A year ago it stood at 3.87 ft (+0.41 ft).

It is still going down, by 0.83 ft over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 3.23 ft – 8.25 ft.

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

Compared with 29 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 4.67 ft0.39 ft below the median for this date
Normal for this date: 3.92 ft – 5.68 ft8 years in 10 fall in this range (29 years of records)
Same day last year: 3.87 ft+0.41 ft
Lowest and highest in 30 days: 3.23 ft – 8.25 ft
Lowest and highest in 12 months: 3.06 ft – 6.01 ft
Highest on record: 24.56 ftSeptember 22, 1998

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 11.00 ft.

What happens at each level

14.50 ft: River out of its banks and flooding Barrios Tanama, Hato Arriba and Hato Abajo.
4.28 ft: Right now

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

Highest crests on record

Rank	Level	Date
1	24.56 ft	September 22, 1998
2	22.39 ft	September 20, 2017
3	19.96 ft	September 18, 2022
4	17.95 ft	May 18, 1985
5	17.11 ft	October 7, 1985
6	16.30 ft	March 28, 2012
7	16.17 ft	September 28, 2005
8	15.48 ft	September 6, 1993
9	15.36 ft	October 1, 1990
10	15.21 ft	October 3, 2022

Weather at the gauge

Rain in the last 3 days: 0.30 in. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 87° 70° 0.09 in, 100% Wind 5 mph

20 Tue 87° 69° 0.17 in, 100% Wind 6 mph

21 Wed 87° 68° 0.11 in, 85% Wind 7 mph

22 Thu 86° 70° 0.13 in, 92% Wind 4 mph

23 Fri 88° 71° 0.09 in, 72% Wind 4 mph

24 Sat 90° 74° 0.04 in, 68% Wind 4 mph

25 Sun 89° 72° 0.02 in, 42% Wind 4 mph

Forecast: Open-Meteo

Sunrise 06:23 AM Sunset 06:02 PM Daylight 11 hr, 39 min First quarter 66%

Map

Other gauges on the Rio Tanama

Gauge	Level	Compared with normal	24 hours	Distance
Rio Tanama near UtuadoRiver gauge, Rio Tanama	3.31 ft	Very low	−0.19 ft	9 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Rio Grande De Arecibo near San PedroRiver gauge, Rio Grande De Arecibo	6.93 ft	Normal	+0.22 ft	1.8 mi
Rio Camuy near BayaneyRiver gauge, Rio Camuy	6.47 ft	High	−0.05 ft	7 mi
Rio Grande De Arecibo below UtuadoRiver gauge, Rio Grande De Arecibo	4.36 ft	Very low	−0.06 ft	8 mi
Rio Limon above Lago Dos BocasRiver gauge, Rio Limon	8.37 ft	Very high	+0.37 ft	9 mi
Rio Grande De Arecibo above UtuadoRiver gauge, Rio Grande De Arecibo	3.93 ft	Normal	−0.03 ft	12 mi
Rio Guajataca at LaresRiver gauge, Rio Guajataca	8.30 ft	Very high	+0.05 ft	13 mi
Rio Caonillas at Paso PalmaRiver gauge, Rio Caonillas	3.87 ft	Very low	−0.16 ft	14 mi
Canal De Derivacion at Lago De GuajatacaCanal gauge, Canal De Derivacion	3.40 ft	Normal	±0	14 mi

Questions and answers

How does the Rio Tanama at Charco Hondo compare with last year?

It is 0.41 ft higher than on the same day last year, when the reading was 3.87 ft.

What is flood stage for the Rio Tanama at Charco Hondo?

The official flood stage is 11.00 ft. The level is currently 6.72 ft below it.

What is a normal level for the Rio Tanama at Charco Hondo in mid-October?

The median for mid-October is 4.67 ft. In 8 years out of 10 the reading falls between 3.92 ft and 5.68 ft, based on 29 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 Tanama at Charco Hondo today?

On Oct 20, 2026, 02:30 AM AST, the water level was 4.28 ft. Down 0.83 ft over the last 24 hours.

Is Rio Tanama at Charco Hondo rising or falling?

Down 0.83 ft over the last 24 hours. Up 0.76 ft over the last 7 days.

Is the level of Rio Tanama at Charco Hondo normal?

Low for mid-October. Compared with 29 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:50028400 (Agency page)
Coordinates: 18.41410, -66.71471 (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	4.28 ft	2026-10-20 06:30	Provisional
Flow	152 cfs	2026-10-20 06:30	Provisional

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How to cite

U.S. Geological Survey: Rio Tanama at Charco Hondo (usgs:50028400). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-tanama-at-charco-hondo

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