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 high tide is at 2:50 PM (1.5ft) and the next low tide is at 1:13 AM (0.4ft), based on harmonic predictions for Bayou Rigaud, 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) |
|---|---|
| Tue, Sep 15 | L 1:13 AM 0.4ftH 2:50 PM 1.5ft |
| Wed, Sep 16 | L 1:58 AM 0.3ftH 3:14 PM 1.6ft |
| Thu, Sep 17 | L 2:43 AM 0.1ftH 3:44 PM 1.7ft |
| Fri, Sep 18 | L 3:28 AM 0.0ftH 4:23 PM 1.7ft |
| Sat, Sep 19 | L 4:07 AM 0.0ftH 5:05 PM 1.7ft |
| Sun, Sep 20 | L 4:49 AM 0.0ftH 5:50 PM 1.7ft |
| Mon, Sep 21 | L 5:25 AM 0.1ftH 6:38 PM 1.6ft |
| Tue, Sep 22 | L 5:55 AM 0.2ftH 7:26 PM 1.5ft |
Predicted for Bayou Rigaud, Grand Isle, 3.9 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table). Heights and times are that station's own published offsets applied to harmonic constituents from EAST POINT, GRAND ISLE, its reference station 4.2 km away.
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.
Fishare reads the tide, weather, light and moon for your spot and pings you when the next 3-hour peak window opens. The forecast, saved spots and catch log stay free, forever.
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