Rio Marin near Patillas water level
River gauge, Rio Marin, Puerto Rico, United States
Right now
Normal for mid-October
Water level
- Flow
- 18.7 cfs
History
20252026
What this means
Water levels are unremarkable at Rio Marin near Patillas, where the gauge shows 6.51 ft.
The median for mid-October is 6.29 ft, based on 21 years of readings, so the river stage is 0.22 ft above typical. It is 7.49 ft below the flood stage of 14.00 ft. On the same day last year the reading was 6.27 ft, a difference of +0.24 ft.
It has barely moved over the past 24 hours. The 30-day range is 6.43 ft – 7.27 ft.
Fall is often low-water season on rivers, until steadier rain returns.
Compared with 21 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 6.29 ft0.22 ft above the median for this date
- Normal for this date
- 4.30 ft – 8.23 ft8 years in 10 fall in this range (21 years of records)
- Same day last year
- 6.27 ft+0.24 ft
- Lowest and highest in 30 days
- 6.43 ft – 7.27 ft
- Lowest and highest in 12 months
- 6.11 ft – 7.45 ft
- Highest on record
- 20.16 ftSeptember 21, 2008
Paddling and fishing conditions
Most paddlers and anglers will find the river in good shape at this stage.
For reference, flood stage is 14.00 ft.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 20.16 ft | September 21, 2008 |
| 2 | 17.30 ft | September 18, 2022 |
| 3 | 16.22 ft | June 2, 2024 |
| 4 | 15.49 ft | June 29, 2023 |
| 5 | 13.71 ft | September 12, 2011 |
| 6 | 13.28 ft | September 1, 2001 |
| 7 | 13.11 ft | August 20, 2013 |
| 8 | 12.67 ft | July 31, 2012 |
| 9 | 12.33 ft | September 15, 2004 |
| 10 | 11.82 ft | August 22, 2014 |
Weather at the gauge
Rain in the last 3 days: 0.09 in. Rain that falls upstream can take hours or days to show up at a river gauge.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Canal De Patillas at ForebayCanal gauge, Canal De Patillas | 1.57 ft | High | ±0 | 1.5 mi |
| Rio Grande De Patillas near PatillasRiver gauge, Rio Grande De Patillas | 4.66 ft | Normal | −0.05 ft | 1.5 mi |
| Rio Grande De Patillas below Lago PatillasCanal gauge, Rio Grande De Patillas | 4.31 ft | Low | ±0 | 1.7 mi |
| Rio Maunabo at LizasRiver gauge, Rio Maunabo | 3.64 ft | Normal | −0.07 ft | 4.6 mi |
| Rio Grande De Loiza at Quebrada ArenasRiver gauge, Rio Grande De Loiza | 5.09 ft | Normal | −0.03 ft | 5.8 mi |
| Canal De Patillas above Guayama Filtration PlantCanal gauge, Canal De Patillas | 2.63 ft | High | ±0 | 7 mi |
| Canal De Patillas below Guayama Filtration PlantCanal gauge, Canal De Patillas | 1.43 ft | Normal | ±0 | 7 mi |
| Rio Guayanes near YabucoaRiver gauge, Rio Guayanes | 10.19 ft | Normal | −0.42 ft | 7 mi |
Questions and answers
Is the Rio Marin near Patillas higher than last year?
Yes, it is 0.24 ft higher than on the same day last year, when the reading was 6.27 ft.
What is flood stage for the Rio Marin near Patillas?
The official flood stage is 14.00 ft. The level is currently 7.49 ft below it.
What is a normal level for the Rio Marin near Patillas in mid-October?
The median for mid-October is 6.29 ft. In 8 years out of 10 the reading falls between 4.30 ft and 8.23 ft, based on 21 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 Marin near Patillas today?
On Oct 19, 2026, 06:45 PM AST, the water level was 6.51 ft. Steady over the last 24 hours.
Is Rio Marin near Patillas rising or falling?
Steady over the last 24 hours. Down 0.29 ft over the last 7 days.
Is the level of Rio Marin near Patillas normal?
Normal for mid-October. Compared with 21 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:50093000(Agency page)- Coordinates
18.03778, -66.00972(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 | 6.51 ft | 2026-10-19 22:45 | Provisional |
| Flow | 18.7 cfs | 2026-10-19 22:45 | Provisional |
Download
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How to cite
U.S. Geological Survey: Rio Marin near Patillas (usgs:50093000). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/puerto-rico/rio-marin-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.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer