Today's high and low tide times for Grand Isle, LA, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Grand Isle, LA, the next low tide is at 11:43 AM (0.08 m), predicted from EAST POINT, GRAND ISLE.
All high and low tides for Grand Isle today, in local time (America/Chicago). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Grand Isle.
| Date | Tides (local time · height) |
|---|---|
| Wed, Jun 17 | L 11:43 AM 0.08 m |
| Thu, Jun 18 | H 2:26 AM 0.42 mL 12:46 PM 0.11 m |
| Fri, Jun 19 | H 3:26 AM 0.39 mL 1:52 PM 0.14 m |
| Sat, Jun 20 | H 4:38 AM 0.36 mL 3:07 PM 0.17 m |
| Sun, Jun 21 | H 6:23 AM 0.32 mL 4:46 PM 0.21 m |
| Mon, Jun 22 | H 9:50 AM 0.29 m |
| Tue, Jun 23 | L 2:28 AM 0.21 mH 2:53 PM 0.30 m |
Predicted from EAST POINT, GRAND ISLE, 3.9 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Grand Isle.
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