Mississippi Sound at Usgs Round Island Light water level

Name: Mississippi Sound at Usgs Round Island Light water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Tidal gauge, Mississippi Sound, Mississippi, United States

Directions

Latest reading

Water level

2.91ft Down 0.10 ft over the last 24 hours

Measured Oct 21, 2026, 03:45 AM CDT (1 hour ago)

Water temperature: 69 °F

History

7 days

Water level

What this means

The U.S. Geological Survey has the Mississippi Sound at Usgs Round Island Light at 2.91 ft. There is no published reference for this tidal gauge yet, so we can't say whether that is high or low for the season.

It is still going down, by 0.10 ft over the past 24 hours. The 30-day range is 1.76 ft – 3.28 ft.

Over the past seven days the change adds up to +0.62 ft. The water temperature at the gauge is 69 °F.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Weather at the gauge

No rain in the last 3 days.

21 Wed 73° 59° – Wind 16 mph

22 Thu 73° 61° – Wind 10 mph

23 Fri 81° 54° – Wind 8 mph

24 Sat 77° 54° – Wind 9 mph

25 Sun 79° 54° – Wind 10 mph

26 Mon 78° 54° – Wind 8 mph

27 Tue 80° 57° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 07:01 AM Sunset 06:18 PM Daylight 11 hr, 17 min Waxing gibbous 76%

Map

Other gauges on the Mississippi Sound

Gauge	Level	Compared with normal	24 hours	Distance
Mississippi Sound at Usgs Merrill Shell Bank LightEstuary gauge, Mississippi Sound	3.78 ft	Normal	−0.19 ft	40 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Escatawpa River at I-10 near Orange GroveRiver gauge, Escatawpa River	1.80 ft	Below flood stage	+0.06 ft	13 mi
Biloxi Bay at Point Cadet Harbor at BiloxiEstuary gauge, Biloxi Bay	1.10 ft	Normal	−0.11 ft	17 mi
Pascagoula River at Graham FerryRiver gauge, Pascagoula River	2.20 ft	Low	+0.09 ft	21 mi
Tchoutacabouffa River near D'ibervilleRiver gauge, Tchoutacabouffa River	1.91 ft	Below flood stage	−0.07 ft	22 mi
Big Creek near Seven HillsRiver gauge, Big Creek	6.65 ft	Low	−0.04 ft	26 mi
Fowl River at Half-Mile Road near LaurendineRiver gauge, Fowl River	1.54 ft	Very low	−0.02 ft	27 mi
Biloxi River near LymanRiver gauge, Biloxi River	5.34 ft	Below flood stage	+3.22 ft	30 mi
Red Creek at VestryRiver gauge, Red Creek	4.38 ft	Low	−0.01 ft	32 mi

Questions and answers

What is the water level of Mississippi Sound at Usgs Round Island Light today?

On Oct 21, 2026, 03:45 AM CDT, the water level was 2.91 ft. Down 0.10 ft over the last 24 hours.

Is Mississippi Sound at Usgs Round Island Light rising or falling?

Down 0.10 ft over the last 24 hours. Up 0.62 ft over the last 7 days.

Is the level of Mississippi Sound at Usgs Round Island Light normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

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:301849088350000 (Agency page)
Coordinates: 30.30806, -88.58389 (WGS84)
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	2.91 ft	2026-10-21 08:45	Provisional
Water temperature	69 °F	2026-10-21 08:45	Provisional

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How to cite

U.S. Geological Survey: Mississippi Sound at Usgs Round Island Light (usgs:301849088350000). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/mississippi/mississippi-sound-at-usgs-round-island-light

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