Swan River at East Patchogue water level

Name: Swan River at East Patchogue 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, Swan River, New York, United States

Directions

Normal for mid-October

Water level

0.51ft Steady over the last 24 hours

Measured Oct 18, 2026, 09:15 AM EDT (1 hour ago)

Flow: 12.0 cfs

History

7 days

Water level

What this means

The gauge at Swan River at East Patchogue reads 0.51 ft, a normal level for mid-October.

It has barely moved over the past 24 hours.

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

Compared with 5 years of daily readings for this time of year. How to read levels

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:07 AM Sunset 06:09 PM Daylight 11 hr, 2 min First quarter 50%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Carmans River at YaphankRiver gauge, Carmans River	13.0 cfs	Very low	−0.6 cfs	6 mi
Connetquot Brook near Central IslipRiver gauge, Connetquot Brook	23.4 cfs	Normal	−0.8 cfs	9 mi
Sampawams Creek at BabylonRiver gauge, Sampawams Creek	7.1 cfs	Normal	−0.8 cfs	17 mi
Carlls River at BabylonRiver gauge, Carlls River	14.9 cfs	Normal	−2.2 cfs	18 mi
Peconic River at RiverheadRiver gauge, Peconic River	21.4 cfs	Normal	−2.3 cfs	19 mi
Massapequa Creek at MassapequaRiver gauge, Massapequa Creek	2.3 cfs	Low	−0.3 cfs	25 mi
Cold Spring Brook at Cold Spring HarborRiver gauge, Cold Spring Brook	1.3 cfs	Low	±0	25 mi
Laurel Lake near MattituckLake, Laurel Lake	4.33 ft	Very low	−0.02 ft	27 mi

Questions and answers

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 Swan River at East Patchogue today?

On Oct 18, 2026, 09:15 AM EDT, the water level was 0.51 ft. Steady over the last 24 hours.

Is Swan River at East Patchogue rising or falling?

Steady over the last 24 hours.

Is the level of Swan River at East Patchogue normal?

Normal for mid-October. Compared with 5 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01305500 (Agency page)
Coordinates: 40.76725, -72.99383 (WGS84)
Vertical datum: NGVD29
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	0.51 ft	2026-10-18 13:15	Provisional
Flow	12.0 cfs	2026-10-18 13:15	Provisional

Download

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How to cite

U.S. Geological Survey: Swan River at East Patchogue (usgs:01305500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-york/swan-river-at-east-patchogue

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