Grand Pass Tides Today
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Grand Pass runs a mean tidal range of about 1.4 ft. This month the highest water, 2.4 ft, comes on the morning of Oct 2, and the lowest, a -0.3 ft minus tide, on the morning of Oct 29.
| High tide | 2:27 AM | 2.2 ft |
| Low tide | 1:58 PM | -0.1 ft |
Today on the water at Grand Pass
Today at Grand Pass: high tide at 2:27 AM (2.2 ft), low tide at 1:58 PM (-0.1 ft). Sunrise is at 7:09 AM and sunset at 6:11 PM.
Forecast: National Weather Service point forecast for this location.
Where Grand Pass is
Grand Pass sits at 30.1267° N, 89.2217° W on the northern Gulf of Mexico, about 9 mi southeast of Bay St. Louis, MS. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1980 until 1996, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is St. Louis Bay entrance (NOAA 8747437), 15.1 mi away, and high and low water here run on average about 33 min earlier than there. The nearest weather station is Bay Waveland Yacht Club, MS, a shore station reporting wind and, at most sites, water temperature, 15.1 mi away.
The tide at Grand Pass
Grand Pass has a diurnal tide: usually one high and one low a day, with the daily rhythm shifting about 50 minutes later each day and fading near the moon's equatorial crossing. This month's predictions average 1.1 high tides a day here. The mean range from lower low to higher high is 1.5 ft, and 1.4 ft between the average high and the average low, a small tide. For the water around it: Northern Gulf tides are diurnal, one high and one low most days with ranges of 1 to 2 ft, so wind and river stage move the water as much as the moon.
About this station
- Highest water on record: 5.6 ft on Jan 20, 1983.
- Lowest on record: -2.2 ft on Apr 12, 1988.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Grand Pass from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 1.5 ft above it and mean sea level 0.7 ft. These datums are controlled from NOAA's Bay Waveland Yacht Club, MS gauge. Source: NOAA CO-OPS station 8760668, established 1980, gauge removed 1996. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near Grand Pass
- Comfort Island: 21.2 mi, tides about 13 min later
- Chandeleur Light: 21.6 mi, tides about 26 min earlier
- The Rigolets, U.S. Highway 90: 30.9 mi, tides about 200 min later
- Shell Beach, Lake Borgne: 32.4 mi, tides about 203 min later
- Martello Castle, Lake Borgne: 38.8 mi, tides about 125 min later
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Grand Pass this month: Oct 1, Oct 2, Oct 3, Oct 4, Oct 27, Oct 29, Oct 30, Oct 31. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Grand Pass this month: Oct 27, Oct 28, Oct 29, Oct 30, Oct 31. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Grand Pass, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌖 | 4:38–6:38 AM 5:03–7:03 PM | 10:24–12:24 AM 11:57–1:57 PM | 55 |
| Sun Nov 1 🌗 | 5:38–7:38 AM 6:03–8:03 PM | — 12:44–2:44 PM | 42 |
| Mon Nov 2 🌗 | 6:33–8:33 AM 6:58–8:58 PM | 11:34–1:34 AM 1:24–3:24 PM | 33 |
| Tue Nov 3 🌗 | 7:24–9:24 AM 7:49–9:49 PM | 12:42–2:42 AM 1:58–3:58 PM | 47 |
| Wed Nov 4 🌗 | 8:12–10:12 AM 8:37–10:37 PM | 1:47–3:47 AM 2:30–4:30 PM | 61 |
| Thu Nov 5 🌘 | 8:58–10:58 AM 9:23–11:23 PM | 2:49–4:49 AM 3:00–5:00 PM | 73 |
| Fri Nov 6 🌘 | 9:43–11:43 AM 10:08–12:08 AM | 3:50–5:50 AM 3:29–5:29 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8760668. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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