Grand Isle tides today
East Point, at the tip of Grand Isle beside Barataria Pass, is the reference gauge for the barrier coast south of New Orleans.
Shaded: night. Green bands: solunar periods (thick = major, thin = minor). Heights in feet above Mean Lower Low Water, the zero of NOAA charts.
Grand Isle, LA · Tuesday, October 13
Tide rising, 0.9 ft now
High 11:36 PM
1.6 ft · in 6 h 55 min
| Low | 10:32 AM | 0.3 ft |
| High | 11:36 PM | 1.6 ft |
Tide coefficient 113 (average), range 1.3 ft
Sunrise 7:00 AM · sunset 6:32 PM
Waxing crescent, 10% lit · fishing day ★★☆☆
Solunar: major 1:41 AM–3:41 AM, minor 9:24 AM–10:24 AM, major 2:06 PM–4:06 PM, minor 7:45 PM–8:45 PM
Grand Isle tide table, next 7 days
| Day | High tides | Low tides | Coef. | Sun | Moon |
|---|---|---|---|---|---|
| 11:36 PM 1.6 ft | 10:32 AM 0.3 ft | 113 | 7:00 AM–6:32 PM | Waxing crescent ★★☆☆ | |
| 11:24 AM 0.3 ft | 7:01 AM–6:31 PM | Waxing crescent ★★☆☆ | |||
| 12:27 AM 1.6 ft | 12:14 PM 0.3 ft | 117 | 7:01 AM–6:29 PM | Waxing crescent ★★☆☆ | |
| 1:20 AM 1.6 ft | 1:06 PM 0.3 ft | 115 | 7:02 AM–6:28 PM | First quarter ★★☆☆ | |
| 2:09 AM 1.6 ft | 1:59 PM 0.3 ft | 111 | 7:03 AM–6:27 PM | First quarter ★★☆☆ | |
| 2:55 AM 1.6 ft | 2:52 PM 0.3 ft | 103 | 7:03 AM–6:26 PM | First quarter ★★☆☆ | |
| 3:38 AM 1.5 ft | 3:39 PM 0.4 ft | 90 | 7:04 AM–6:25 PM | First quarter ★★☆☆ |
Plan around the tide at Grand Isle
- Tue Oct 13, 4:41 PM to 5:13 PM32 min · lowest 0.3 ft at 10:32 AM
- Wed Oct 14, 7:01 AM to 6:04 PM11 h 3 min · lowest 0.3 ft at 11:01 AM
- Thu Oct 15, 7:01 AM to 6:29 PM11 h 28 min · lowest 0.3 ft at 12:01 PM
- Fri Oct 16, 7:02 AM to 6:28 PM11 h 26 min · lowest 0.3 ft at 1:02 PM
- Sat Oct 17, 7:25 AM to 6:27 PM11 h 2 min · lowest 0.3 ft at 1:59 PM
- Sun Oct 18, 8:15 AM to 6:26 PM10 h 11 min · lowest 0.3 ft at 2:55 PM
- Mon Oct 19, 9:04 AM to 6:25 PM9 h 21 min · lowest 0.4 ft at 3:04 PM
A falling tide uncovers sand bars and tide pools first; plan to be back before the water rises past the level you chose. Not for navigation.
Station EAST POINT, GRAND ISLE (NOAA 8761724). Predicted astronomical tide: wind, river flow and storms can move the real water by a foot or more. 1.2 ft is the average daily range here.
Published by Radif Partners · How the tides are computed · predictions downloaded October 13, 2026
Tide times for Grand Isle come from the National Ocean Service prediction for station 8761724, EAST POINT, GRAND ISLE. The tide here is mostly diurnal: on 93% of days there is a single high and a single low, and the water rises or falls for hours at a time with an average daily range of only 1.2 ft. Around the new and full moon the range grows to about 1.9 ft on one day in ten, and at the quarter moons it shrinks to 0.4 ft. Heights are in feet above Mean Lower Low Water, the zero of nautical charts, so a negative number is water below that zero: 240 of the 457 days from October 1, 2026 to December 31, 2027 have one, down to -1.1 ft on January 20, 2027. The highest predicted tide of that period is 1.9 ft on October 30, 2026. Clock times are Central Time, daylight saving time included.
Two passes and a vast bay
93% of days at East Point bring a single high, and the range on an average day is a modest 1.2 ft. Grand Isle is a narrow barrier island with the Gulf on its south face and the marsh and open water of Barataria Bay behind it. Barataria Pass, at the island's east end next to the gauge, and Caminada Pass, at its west end, are the doors through which that huge estuary breathes. The tide is small, but the volume of water moving through those passes is large, which is part of why the passes draw so much interest from anglers.
Barataria Bay lags by hours
NOAA predicts the surrounding stations from East Point itself, so the corrections read directly against this page. Barataria Pass turns 60 minutes after East Point at high water but 10 minutes before it at low water, with heights 13 percent greater. Bayou Rigaud, on the bay side of the island where the harbor lies, reaches high 92 minutes later. Independence Island, a few miles into the bay, waits 149 minutes, and Quatre Bayous Pass 138 minutes. A trip that starts at the island and ends deep in the bay crosses several tide clocks.
A coast where wind and land both move
The figures here are astronomy only. On the Louisiana coast, a few days of south or southeast wind can raise the water by more than the tide itself, and a sharp winter front can blow the bays out until docks sit high and dry. 240 days of the period have a predicted low below the chart datum, and on a strong norther the real level can fall lower still. The land here is also subsiding while the sea rises, one reason high water now reaches the island's low edges more often than it used to. For context on how far the water can drop, see the negative low tide guide; none of this is for navigation.
Highest and lowest tides at Grand Isle, 2026 to 2027
The six highest highs and six lowest lows predicted for EAST POINT, GRAND ISLE between October 1, 2026 and December 31, 2027, one per day. The high-water dates are the king tides of this station; the low-water dates are the best days to see the flats, bars and tide pools.
| Highest highs | Time | Height |
|---|---|---|
| October 30, 2026 | 12:30 AM | 1.9 ft |
| October 2, 2026 | 1:54 AM | 1.8 ft |
| October 3, 2026 | 2:59 AM | 1.8 ft |
| October 28, 2026 | 11:23 PM | 1.8 ft |
| October 31, 2026 | 1:37 AM | 1.8 ft |
| October 4, 2026 | 4:08 AM | 1.8 ft |
| Lowest lows | Time | Height |
|---|---|---|
| January 20, 2027 | 6:15 AM | -1.1 ft |
| January 21, 2027 | 7:10 AM | -1.1 ft |
| January 19, 2027 | 5:22 AM | -1.0 ft |
| January 22, 2027 | 8:08 AM | -1.0 ft |
| December 24, 2026 | 8:15 AM | -1.0 ft |
| December 23, 2026 | 7:15 AM | -0.9 ft |
Tidal datums at station 8761724
NOAA's averages over the 2012-2016 epoch, measured from the chart zero (MLLW). Average range of the tide (MN): 1.0 ft; great diurnal range (GT): 1.1 ft.
| Datum | Meaning | Height above MLLW |
|---|---|---|
| MHHW | Mean Higher High Water | 1.1 ft |
| MHW | Mean High Water | 1.1 ft |
| MSL | Mean Sea Level | 0.5 ft |
| MLW | Mean Low Water | 0.0 ft |
| MLLW | Mean Lower Low Water (chart zero) | 0.0 ft |