Nivelmap
EN

How to read levelsSources and methods

North America

Western Europe

Central Europe

Mediterranean

Nordic countries

Cooper River at Mobay near N Charleston water level

Tidal gauge, Cooper River, South Carolina, United States

Directions

Very high for mid-October

Water level

9.40ft Down 0.37 ft over the last 24 hours

Water temperature
72 °F
8 9

History

6810ftOct 16Oct 17Oct 18Oct 19Oct 206810ftOct 16Oct 18Oct 20
8910ftSep 21Sep 28Oct 5Oct 13Oct 208910ftSep 21Oct 5Oct 20
68ftOct 2025Jan 2026Apr 2026Jul 2026Oct 202668ftOct 2025Apr 2026Oct 2026
68ftJanMarMayJulSepNov202668ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

The gauge at Cooper River at Mobay near N Charleston shows 9.40 ft, well above normal for mid-October.

The median for mid-October is 8.18 ft, based on 40 years of readings, so the water level is 1.22 ft above typical. On the same day last year the reading was 8.61 ft, a difference of +0.79 ft.

The level is falling, down 0.37 ft over the past 24 hours. Over the past 30 days it has moved between 6.12 ft and 10.71 ft.

The water temperature at the gauge is 72 °F.

Compared with 40 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
8.18 ft1.22 ft above the median for this date
Normal for this date
7.55 ft – 8.70 ft8 years in 10 fall in this range (40 years of records)
Same day last year
8.61 ft+0.79 ft
Lowest and highest in 30 days
6.12 ft – 10.71 ft
Lowest and highest in 12 months
6.76 ft – 9.49 ft

High water at Cooper River at Mobay near N Charleston

The National Weather Service splits flooding into minor, moderate and major flood stage, each tied to what starts to go under water at this particular gauge. Minor flooding usually means low roads, parks and farmland; major flooding reaches homes and businesses.

Keep children and dogs well back from the edge, and stay off flooded footpaths and towpaths.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:28 AM Sunset 06:42 PM Daylight 11 hr, 14 min Waxing gibbous 70%

Map

Other gauges on the Cooper River

Gauge Level Compared with normal 24 hours Distance
Cooper River above Goose CreekTidal gauge, Cooper River 7.93 ft Low −0.64 ft 2.4 mi
Cooper River near Goose CreekTidal gauge, Cooper River 17.13 ft Very high −0.35 ft 5.2 mi
Cooper River at Filbin Creek at North CharlestonTidal gauge, Cooper River 12.77 ft Very high −1.07 ft 7 mi
Cooper River at Ports Authority Pier K CharlestonTidal gauge, Cooper River 13.81 ft Very high −0.82 ft 9 mi
Cooper River at U.s. Highway 17 at CharlestonTidal gauge, Cooper River 8.30 ft Very high −0.77 ft 13 mi
Cooper River at S. Adgers Wharf at CharlestonRiver gauge, Cooper River 20.70 ft No reference yet −0.54 ft 14 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
French Quarter Creek near HugerRiver gauge, French Quarter Creek 7.33 ft Below flood stage −0.40 ft 5.1 mi
Back River at Dupont Intake near KittredgeTidal gauge, Back River 16.71 ft Normal −0.03 ft 5.5 mi
Wando River at Cainhoy below WandoTidal gauge, Wando River 13.37 ft Normal −0.90 ft 7 mi
West Branch Cooper River at Pimlico near Moncks CornerTidal gauge, West Branch Cooper River 12.58 ft Normal −0.23 ft 8 mi
Wando River above Mount PleasantTidal gauge, Wando River 19.70 ft Very high −0.78 ft 9 mi
Ashley River near North CharlestonTidal gauge, Ashley River 10.47 ft Very high −0.71 ft 12 mi

Questions and answers

Is the Cooper River at Mobay near N Charleston higher than last year?

Yes, it is 0.79 ft higher than on the same day last year, when the reading was 8.61 ft.

What is a normal level for the Cooper River at Mobay near N Charleston in mid-October?

The median for mid-October is 8.18 ft. In 8 years out of 10 the reading falls between 7.55 ft and 8.70 ft, based on 40 years of records.

What is the water level of Cooper River at Mobay near N Charleston today?

On Oct 20, 2026, 02:00 PM EDT, the water level was 9.40 ft. Down 0.37 ft over the last 24 hours.

Is Cooper River at Mobay near N Charleston rising or falling?

Down 0.37 ft over the last 24 hours. Up 0.97 ft over the last 7 days.

Is the level of Cooper River at Mobay near N Charleston normal?

Very high for mid-October. Compared with 40 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:02172053 (Agency page)
Coordinates
32.98351, -79.92286 (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

ParameterLast valueTime (UTC)Quality
Water level 9.40 ft 2026-10-20 18:00 Provisional
Water temperature 72 °F 2026-10-20 18:00 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Cooper River at Mobay near N Charleston (usgs:02172053). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/south-carolina/cooper-river-at-mobay-near-n-charleston

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