Barataria Bay near Grand Terre Island water level

Name: Barataria Bay near Grand Terre Island water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Lake, Barataria Bay, Louisiana, United States

Directions

Very low for mid-October

Water level

2.34ft Down 0.56 ft over the last 24 hours

Measured Oct 16, 2026, 04:00 PM CDT (1 hour ago)

Water temperature: 82 °F

History

What this means

Barataria Bay near Grand Terre Island is far below normal for mid-October, with the lake level at 2.34 ft.

That puts it 0.73 ft below the median of 3.07 ft for mid-October, based on 7 years of readings.

It has dropped 0.56 ft over the past 24 hours. With the water still dropping, the shoreline keeps moving out. In the last month it has stayed between 2.23 ft and 3.97 ft.

Many reservoirs reach their low point of the year in fall, before winter rain and snow start the refill. The sensor also reports a water temperature of 82 °F.

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 3.07 ft0.73 ft below the median for this date
Normal for this date: 2.69 ft – 3.71 ft8 years in 10 fall in this range (7 years of records)
Lowest and highest in 30 days: 2.23 ft – 3.97 ft
Lowest and highest in 12 months: 1.03 ft – 3.97 ft

On the water at Barataria Bay near Grand Terre Island

A receding shoreline opens up beaches but also uncovers hazards: stumps, rocks and soft mud that are usually well under water.

At 82 °F, the water is pleasant for swimming. Warm, still water can encourage algae, so check for local bloom notices.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:02 AM Sunset 06:30 PM Daylight 11h 27m First quarter 34 %

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Barataria Pass at Grand IsleRiver gauge, Barataria Pass	7.22 ft	Highest on record	−0.46 ft	3.6 mi
Hackberry Bay NW of Grand IsleEstuary gauge	3.13 ft	Very high	−0.66 ft	8 mi
Little Lake near Bay Dosgris E of GallianoLake, Little Lake	4.95 ft	Low	−0.33 ft	14 mi
Bayou Perot at Point Legard near CutoffEstuary gauge, Bayou Perot	2.47 ft	Normal	−0.29 ft	21 mi
Naomi Diversion Canal near NaomiRiver gauge, Naomi Diversion Canal	1.93 ft	Normal	+0.04 ft	26 mi
Northeast Bay Gardene near Point-A-LA-HacheEstuary gauge, Northeast Bay Gardene	0.77 ft	Low	−0.51 ft	27 mi
Crooked B. NW of L. Cuatro Caballo near DelacroixEstuary gauge, Crooked B. NW of L. Cuatro Caballo	5.58 ft	Normal	−0.15 ft	30 mi
Reggio Canal near Wills PointCanal gauge, Reggio Canal	1.35 ft	Normal	+0.12 ft	32 mi

Questions and answers

How often is Barataria Bay near Grand Terre Island updated?

Several times an hour. New readings from U.S. Geological Survey appear here as they arrive. Latest: Oct 16, 2026, 04:00 PM CDT.

Is Barataria Bay near Grand Terre Island rising or falling?

It is falling, by 0.56 ft over the past 24 hours.

What is the water level of Barataria Bay near Grand Terre Island today?

On Oct 16, 2026, 04:00 PM CDT, the water level was 2.34 ft. Down 0.56 ft over the last 24 hours.

Is Barataria Bay near Grand Terre Island rising or falling?

Down 0.56 ft over the last 24 hours. Down 1.63 ft over the last 7 days.

Is the level of Barataria Bay near Grand Terre Island normal?

Very low for mid-October. Compared with 7 years of daily readings for this time of year.

How often is this data updated?

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 U.S. Geological Survey, the official operator of this gauge, and are published under 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:291929089562600 (Agency page)
Coordinates: 29.32472, -89.94050 (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 `stage`	2.34 ft	2026-10-16 21:00	Provisional
Water temperature `temperature`	82 °F	2026-10-16 21:00	Provisional

Download

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How to cite

U.S. Geological Survey: Barataria Bay near Grand Terre Island (usgs:291929089562600). Accessed October 16, 2026 via Nivelmap, https://nivelmap.com/en/united-states/louisiana/barataria-bay-near-grand-terre-island

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