Winnicut River at Greenland, near Portsmouth water level

Name: Winnicut River at Greenland, near Portsmouth 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, Winnicut River, New Hampshire, United States

Directions

Very high for late October

Water level

5.10ft Steady over the last 24 hours

Measured Oct 21, 2026, 03:30 AM EDT (1 hour ago)

Flow: 42.8 cfs

History

7 days

Water level

What this means

The Winnicut River at Greenland, near Portsmouth is well above normal at 5.10 ft.

The level has held steady over the past 24 hours. In the last month it has stayed between 5.08 ft and 5.19 ft.

That stands out in fall, when many rivers are usually near their lowest.

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

Flood levels and safety

Most flood deaths in the US happen in vehicles. Six inches of fast water can knock an adult off their feet, and a foot or two can float a car. If a road is covered, turn around.

Readings can change quickly after heavy rain upstream, so check again before heading near the water.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:05 AM Sunset 05:53 PM Daylight 10 hr, 48 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Lamprey River near NewmarketRiver gauge, Lamprey River	1.52 ft	Below flood stage	−0.06 ft	7 mi
Oyster River near DurhamRiver gauge, Oyster River	1.3 cfs	Low	−0.3 cfs	10 mi
Exeter River at Haigh Road, near BrentwoodRiver gauge, Exeter River	17.7 cfs	Normal	−2.9 cfs	10 mi
Isinglass River at Rochester Neck Road, near DoverRiver gauge, Isinglass River	63.0 cfs	Normal	−3.2 cfs	15 mi
Merrimack River at NewburyportEstuary gauge, Merrimack River	−1.11 ft	Very low	−0.70 ft	15 mi
Exeter River at Odell Road, near SandownRiver gauge, Exeter River	2.9 cfs	Normal	+0.2 cfs	17 mi
Cocheco River near RochesterRiver gauge, Cocheco River	19.7 cfs	Low	±0	17 mi
Lamprey River at Langford Road, at RaymondRiver gauge, Lamprey River	10.4 cfs	Low	−1.3 cfs	18 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 Winnicut River at Greenland, near Portsmouth today?

On Oct 21, 2026, 03:30 AM EDT, the water level was 5.10 ft. Steady over the last 24 hours.

Is Winnicut River at Greenland, near Portsmouth rising or falling?

Steady over the last 24 hours.

Is the level of Winnicut River at Greenland, near Portsmouth normal?

Very high for late 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:01073785 (Agency page)
Coordinates: 43.03583, -70.84750 (WGS84)
Vertical datum: NAVD88
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	5.10 ft	2026-10-21 07:30	Provisional
Flow	42.8 cfs	2026-10-21 07:30	Provisional

Download

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How to cite

U.S. Geological Survey: Winnicut River at Greenland, near Portsmouth (usgs:01073785). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-hampshire/winnicut-river-at-greenland-near-portsmouth

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