How's the tide at Grand Isle today?
High water today at 7:19 am (1.7 ft). Low water at 6:44 pm (-0.4 ft).
Times are local to Grand Isle (America/Chicago). Heights are feet above MLLW.
Grand Isle tide chart — next seven days
Today — Sunday, August 9
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 7:19 am | 1.7 ft | |
| Low | 6:44 pm | -0.4 ft |
2 turns fall on this date. The next one lands after midnight and is listed under the following day.
Monday, August 10
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 8:29 am | 1.7 ft | |
| Low | 7:39 pm | -0.4 ft |
2 turns fall on this date. The next one lands after midnight and is listed under the following day.
Tuesday, August 11
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 9:35 am | 1.7 ft | |
| Low | 8:33 pm | -0.2 ft |
2 turns fall on this date. The next one lands after midnight and is listed under the following day.
Wednesday, August 12
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 10:40 am | 1.5 ft | |
| Low | 9:26 pm | 0.0 ft |
2 turns fall on this date. The next one lands after midnight and is listed under the following day.
Thursday, August 13
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 11:47 am | 1.3 ft | |
| Low | 10:13 pm | 0.2 ft |
2 turns fall on this date. The next one lands after midnight and is listed under the following day.
Friday, August 14
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 1:00 pm | 1.1 ft | |
| Low | 10:49 pm | 0.5 ft |
2 turns fall on this date. The next one lands after midnight and is listed under the following day.
Saturday, August 15
| Tide | Time | Height | Relative height |
|---|---|---|---|
| High | 3:37 am | 0.6 ft | |
| Low | 5:39 am | 0.6 ft | |
| High | 2:23 pm | 0.9 ft | |
| Low | 7:49 pm | 0.7 ft |
Grand Isle tides — month by month
Every high and low water for August 2026 and September 2026.
Grand Isle tide calendar — August 2026
| Day | High water | Low water |
|---|---|---|
| 1 Sat | 11:57 am (1.0) | 9:43 pm (0.3) |
| 2 Sun | 10:59 am (0.8) | 8:32 pm (0.5) |
| 3 Mon | 3:59 am (0.7), 3:24 pm (0.6) | 1:18 pm (0.6), 6:39 pm (0.5) |
| 4 Tue | 3:52 am (0.9) | 2:06 pm (0.3) |
| 5 Wed | 3:59 am (1.1) | 3:01 pm (0.1) |
| 6 Thu | 4:20 am (1.3) | 3:58 pm (-0.1) |
| 7 Fri | 5:03 am (1.5) | 4:54 pm (-0.3) |
| 8 Sat | 6:07 am (1.6) | 5:50 pm (-0.4) |
| 9 Sun · today | 7:19 am (1.7) | 6:44 pm (-0.4) |
| 10 Mon | 8:29 am (1.7) | 7:39 pm (-0.4) |
| 11 Tue | 9:35 am (1.7) | 8:33 pm (-0.2) |
| 12 Wed | 10:40 am (1.5) | 9:26 pm (0.0) |
| 13 Thu | 11:47 am (1.3) | 10:13 pm (0.2) |
| 14 Fri | 1:00 pm (1.1) | 10:49 pm (0.5) |
| 15 Sat | 3:37 am (0.6), 2:23 pm (0.9) | 5:39 am (0.6), 7:49 pm (0.7) |
| 16 Sun | 2:34 am (0.8) | 11:11 am (0.6) |
| 17 Mon | 2:26 am (1.0) | 12:49 pm (0.4) |
| 18 Tue | 2:44 am (1.2) | 2:04 pm (0.3) |
| 19 Wed | 3:16 am (1.3) | 3:14 pm (0.2) |
| 20 Thu | 3:57 am (1.4) | 4:16 pm (0.1) |
| 21 Fri | 4:47 am (1.4) | 5:07 pm (0.0) |
| 22 Sat | 5:47 am (1.5) | 5:51 pm (0.0) |
| 23 Sun | 6:51 am (1.5) | 6:30 pm (0.0) |
| 24 Mon | 7:51 am (1.5) | 7:05 pm (0.1) |
| 25 Tue | 8:43 am (1.5) | 7:36 pm (0.1) |
| 26 Wed | 9:32 am (1.4) | 8:05 pm (0.2) |
| 27 Thu | 10:21 am (1.3) | 8:32 pm (0.4) |
| 28 Fri | 11:20 am (1.2) | 8:49 pm (0.5) |
| 29 Sat | 12:37 pm (1.0) | 7:20 pm (0.7) |
| 30 Sun | 1:54 am (0.8), 2:15 pm (0.9) | 6:26 am (0.7), 6:16 pm (0.8) |
| 31 Mon | 1:48 am (1.0) | 10:45 am (0.6) |
Times local to Grand Isle, heights in feet above MLLW.
Grand Isle tide calendar — September 2026
| Day | High water | Low water |
|---|---|---|
| 1 Tue | 1:53 am (1.2) | 12:00 pm (0.4) |
| 2 Wed | 2:07 am (1.4) | 1:05 pm (0.2) |
| 3 Thu | 2:39 am (1.5) | 2:15 pm (0.1) |
| 4 Fri | 3:28 am (1.7) | 3:27 pm (0.0) |
| 5 Sat | 4:32 am (1.7) | 4:35 pm (-0.1) |
| 6 Sun | 5:51 am (1.8) | 5:37 pm (-0.1) |
| 7 Mon | 7:18 am (1.7) | 6:33 pm (0.0) |
| 8 Tue | 8:39 am (1.6) | 7:25 pm (0.2) |
| 9 Wed | 9:57 am (1.5) | 8:15 pm (0.4) |
| 10 Thu | 11:20 am (1.3) | 9:03 pm (0.6) |
| 11 Fri | 1:36 am (0.7), 12:55 pm (1.2) | 4:07 am (0.7), 9:48 pm (0.9) |
| 12 Sat | 12:25 am (0.9), 2:58 pm (1.0), 11:50 pm (1.1) | 5:59 am (0.7), 5:25 pm (1.0) |
| 13 Sun | 11:59 pm (1.3) | 8:15 am (0.6) |
| 14 Mon | 10:58 am (0.5) | |
| 15 Tue | 12:40 am (1.4) | 12:01 pm (0.4) |
| 16 Wed | 1:26 am (1.5) | 1:00 pm (0.3) |
| 17 Thu | 2:14 am (1.5) | 2:03 pm (0.3) |
| 18 Fri | 3:03 am (1.6) | 3:10 pm (0.3) |
| 19 Sat | 3:55 am (1.6) | 4:11 pm (0.3) |
| 20 Sun | 4:54 am (1.6) | 5:00 pm (0.3) |
| 21 Mon | 6:01 am (1.5) | 5:40 pm (0.3) |
| 22 Tue | 7:14 am (1.5) | 6:12 pm (0.4) |
| 23 Wed | 8:25 am (1.4) | 6:38 pm (0.5) |
| 24 Thu | 9:38 am (1.3) | 6:55 pm (0.7) |
| 25 Fri | 11:05 am (1.2), 11:45 pm (1.0) | 5:59 pm (0.9) |
| 26 Sat | 1:05 pm (1.1), 11:28 pm (1.1) | 5:11 am (0.8), 4:58 pm (1.0) |
| 27 Sun | 11:16 pm (1.3) | 6:43 am (0.6) |
| 28 Mon | 11:05 pm (1.5) | 8:51 am (0.5) |
| 29 Tue | 11:48 pm (1.6) | 10:26 am (0.3) |
| 30 Wed | 11:34 am (0.2) |
Times local to Grand Isle, heights in feet above MLLW.
Wind and weather at Grand Isle
Seven days from the National Weather Service forecast for this stretch of coast. Each row is the range across the whole day, not a reading for one moment.
| Day | Wind | Gusts | Air | Sky | Rain | Waves |
|---|---|---|---|---|---|---|
| Today | 2–6 kn SSE | 10 kn | 82–86 °F | Partly cloudy | 39 % | 1 ft 5 s |
| Mon, August 10 | 4–6 kn S | 9 kn | 83–87 °F | Mostly sunny | 26 % | 1 ft 4 s |
| Tue, August 11 | 4–6 kn S | 10 kn | 83–87 °F | Mostly sunny | 15 % | 1 ft 5 s |
| Wed, August 12 | 5–8 kn SSW | 11 kn | 84–87 °F | Mostly sunny | 22 % | 1 ft 6 s |
| Thu, August 13 | 5–9 kn SSW | 11 kn | 85–88 °F | Mostly sunny | 8 % | 1 ft 6 s |
| Fri, August 14 | 5–9 kn S | 11 kn | 85–88 °F | Mostly sunny | 2 % | 1 ft 6 s |
| Sat, August 15 | 3–6 kn S | 10 kn | 85–88 °F | Mostly sunny | 3 % | 0 ft |
Source: NOAA National Weather Service, forecast office LIX. Public domain. Wind in knots, from the direction given. Wave heights are the forecast for the water off this coast, not the surf on the beach.
Boating, beach and fishing at Grand Isle
The same forecast as above, read for three things people do here. Each verdict names what decided it.
| Day | Boating | Beach | Fishing |
|---|---|---|---|
| Today | Goodwind 6 kn or less | Fair39% chance of rain | Goodlight wind, major window in daylight |
| Mon, August 10 | Goodwind 6 kn or less | Good87 °F and dry | Goodlight wind, major window in daylight |
| Tue, August 11 | Goodwind 6 kn or less | Good87 °F and dry | Goodlight wind, major window in daylight |
| Wed, August 12 | Goodwind 8 kn or less | Good87 °F and dry | Goodlight wind, major window in daylight |
| Thu, August 13 | Goodwind 9 kn or less | Good88 °F and dry | Goodlight wind, major window in daylight |
| Fri, August 14 | Goodwind 9 kn or less | Good88 °F and dry | Goodlight wind, major window in daylight |
| Sat, August 15 | Goodwind 6 kn or less | Good88 °F and dry | Goodlight wind, major window in daylight |
Boating turns to Poor at the National Weather Service small craft threshold — sustained wind of 22 kn, gusts of 26 kn, or seas of 5 ft — and to Fair at 15 kn or 3 ft. Beach weighs air temperature, chance of rain and wind.Fishing asks whether the day is fishable at all and whether a solunar major window falls in daylight; it is not a prediction of what will bite. None of this replaces the marine forecast before you go out.
Sun and moon
Today
Sunrise 6:24 am · Sunset 7:45 pm
Moon 13% lit, waning
Tomorrow
Sunrise 6:25 am · Sunset 7:44 pm
Moon 6% lit, waning
Solunar windows for Grand Isle
The moon pulls hardest when it is directly overhead or on the far side of the earth — the two major windows of about two hours. The shorter minor windows sit around moonrise and moonset. Anglers use them to pick a time on the water; they are computed from the moon's position, not measured.
Today — Sunday, August 9
- Minor2:09 am – 3:09 amMoonrise
- Major9:07 am – 11:07 amMoon overhead
- Minor5:02 pm – 6:02 pmMoonset
- Major9:39 pm – 11:39 pmMoon underfoot
Monday, August 10
- Minor3:19 am – 4:19 amMoonrise
- Major10:11 am – 12:11 pmMoon overhead
- Minor5:57 pm – 6:57 pmMoonset
- Major10:42 pm – 12:42 am (next day)Moon underfoot
Times are local to Grand Isle (America/Chicago).
Questions about Grand Isle tides
Answered from the same NOAA predictions as the table above. Where this page has no basis for an answer, there is no entry.
- What time is high tide in Grand Isle today?
- High water at 7:19 am (1.7 ft), local time in Grand Isle. Heights are feet above MLLW. Because the tide runs on the moon rather than the clock, each turn falls roughly 50 minutes later tomorrow — the seven-day table above carries the shift.
- What time is low tide in Grand Isle today?
- Low water at 6:44 pm (-0.4 ft), local time in Grand Isle. A height below zero is a minus tide: the water falls further than MLLW, the level the heights are counted from.
- How many tides does Grand Isle get in a day?
- Two high waters and two low waters on most days, a little over six hours apart. Over the seven days on this page that comes to 8 high waters and 8 low waters. Where a date shows only three turns, the fourth has slipped past midnight and is listed under the following day.
- What is the tidal range at Grand Isle?
- About 2.1 ft between today's lowest and highest water. Across the next seven days the water moves between -0.4 and 1.7 ft — a span of about 2.1 ft. The range is widest around new and full moon and narrowest at the quarters, so it changes from week to week.
- Which tide station do these Grand Isle tide times come from?
- NOAA station 8761724 — a reference station. East Point at the ocean end of the island, about 9 km from its centre. A reference station has its own long-running record, which is the strongest basis NOAA publishes. The predictions here are NOAA's, unchanged.
- What time zone are the Grand Isle tide times in?
- Every time on this page is clock time in Grand Isle — the America/Chicago zone, daylight saving already applied. Nothing has to be converted, and no time is shown in UTC except the retrieval stamp at the foot of the page.
- When are the solunar windows at Grand Isle today?
- The major windows run 9:07 am to 11:07 am and 9:39 pm to 11:39 pm, with shorter minor windows around moonrise and moonset. They are computed from the moon's position over Grand Isle, not measured — anglers use them to pick a time on the water. The moon is 13% lit and waning.
- How far ahead does this Grand Isle tide chart go?
- Seven days in the table, and every high and low water for August 2026 and September 2026 in the calendar below it. The page is rebuilt every morning, so the first day is always today.
Nearby tide charts
Where these times come from
- Source
- NOAA Center for Operational Oceanographic Products and Services — station 8761724, Grand Isle (reference station)
- Datum
- MLLW — heights in feet above mean lower low water
- Distance
- 9 km from the centre of Grand Isle
- Retrieved
- Aug 9, 2026, 6:37 PM UTC
- Licence
- Public domain (US federal government data). NOS requests that attribution be given whenever NOS material is reproduced and re-disseminated.
East Point at the ocean end of the island, about 9 km from its centre.
Predictions are issued by NOAA. The official NOAA data are authoritative. Not for navigation. Check the official NOAA station page before you rely on these times on the water.