Tides Today & Tomorrow in Southwest Pass, Mississippi River, LA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 5h 26m at 3:44 pm (0.3 ft)
Next high tide (tomorrow) : 4:54 am (1.1 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (51% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:050.211:490.45:260.13:390.16:235:57Full Moon1Fri
2Sat10:300.54:040.35:480.06:215:57Waning Gibbous2Sat
3Sun10:410.77:38-0.16:205:58Waning Gibbous3Sun
4Mon11:080.99:18-0.26:195:59Waning Gibbous4Mon
5Tue11:421.010:41-0.36:185:59Waning Gibbous5Tue
6Wed12:241.111:50-0.46:176:00Third Quarter6Wed
7Thu1:131.16:166:01Third Quarter7Thu
8Fri2:121.112:50-0.46:156:01Third Quarter8Fri
9Sat3:221.11:44-0.46:146:02Third Quarter9Sat
10Sun4:371.12:32-0.46:136:02Waning Crescent10Sun
11Mon5:491.03:13-0.46:126:03Waning Crescent11Mon
12Tue6:561.03:48-0.36:106:04Waning Crescent12Tue
13Wed7:590.94:14-0.16:096:04Waning Crescent13Wed
14Thu9:060.84:280.06:086:05New Moon14Thu
15Fri10:270.410:280.64:220.22:180.36:076:05New Moon15Fri
16Sat9:420.53:450.44:120.16:066:06New Moon16Sat
17Sun9:400.85:450.06:056:07New Moon17Sun
18Mon10:001.07:15-0.26:046:07Waxing Crescent18Mon
19Tue10:341.28:45-0.36:026:08Waxing Crescent19Tue
20Wed11:181.410:11-0.46:016:08Waxing Crescent20Wed
21Thu12:111.511:29-0.56:006:09First Quarter21Thu
22Fri1:131.55:596:09First Quarter22Fri
23Sat2:251.512:38-0.55:586:10First Quarter23Sat
24Sun3:481.41:39-0.55:576:11First Quarter24Sun
25Mon5:221.22:33-0.45:556:11Waxing Gibbous25Mon
26Tue7:011.03:17-0.15:546:12Waxing Gibbous26Tue
27Wed8:440.93:460.15:536:12Waxing Gibbous27Wed
28Thu9:490.510:500.73:450.42:400.45:526:13Full Moon28Thu
29Fri8:540.82:390.64:170.25:516:13Full Moon29Fri
30Sat8:521.05:300.15:496:14Full Moon30Sat
31Sun9:111.26:320.05:486:15Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
What time does the tide turn (slack tide) in Southwest Pass, Mississippi River, LA today?

Slack tide in Southwest Pass, Mississippi River, LA is approximately 10:19 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a neap phase. Tonight's moon is 51% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Southwest Pass, Mississippi River, LA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Southwest Pass, Mississippi River, LA?

Tide predictions for Southwest Pass, Mississippi River, LA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Southwest Pass, Mississippi River, LA?

Tide data for Southwest Pass, Mississippi River, LA is sourced from NOAA Station #8760959. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8760959.

What is the moon phase in Southwest Pass, Mississippi River, LA tonight?

Tonight the moon over Southwest Pass, Mississippi River, LA is Third Quarter (51% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA