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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:21 pm (0.5 ft)
Next high tide : in 6h 53m at 11:53 am (1.0 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:361.78:280.76:506:44Waning Gibbous1Wed
2Thu9:410.76:516:43Waning Gibbous2Thu
3Fri12:131.810:530.66:516:41Waning Gibbous3Fri
4Sat12:571.811:580.66:526:40Third Quarter4Sat
5Sun1:491.812:530.56:526:39Third Quarter5Sun
6Mon2:501.81:420.56:536:38Third Quarter6Mon
7Tue4:071.72:260.66:536:37Third Quarter7Tue
8Wed5:411.73:050.76:546:36Waning Crescent8Wed
9Thu7:271.63:350.86:556:35Waning Crescent9Thu
10Fri9:171.59:591.23:491.06:556:33Waning Crescent10Fri
11Sat11:251.39:281.43:191.03:231.26:566:32New Moon11Sat
12Sun9:311.64:470.76:566:31New Moon12Sun
13Mon9:571.86:050.66:576:30New Moon13Mon
14Tue10:362.07:220.46:586:29Waxing Crescent14Tue
15Wed11:202.18:400.36:586:28Waxing Crescent15Wed
16Thu9:570.36:596:27Waxing Crescent16Thu
17Fri12:092.111:110.36:596:26Waxing Crescent17Fri
18Sat1:012.012:170.47:006:25First Quarter18Sat
19Sun1:541.91:120.57:016:24First Quarter19Sun
20Mon2:521.71:550.67:016:23First Quarter20Mon
21Tue4:061.52:230.87:026:22Waxing Gibbous21Tue
22Wed6:181.310:351.22:290.97:036:21Waxing Gibbous22Wed
23Thu8:481.29:231.32:521.12:061.17:036:20Waxing Gibbous23Thu
24Fri8:591.43:561.07:046:19Waxing Gibbous24Fri
25Sat8:581.54:420.87:056:18Full Moon25Sat
26Sun8:091.64:240.76:055:17Full Moon26Sun
27Mon8:291.75:040.66:065:16Full Moon27Mon
28Tue8:551.85:460.56:075:15Full Moon28Tue
29Wed9:241.86:300.56:075:15Waning Gibbous29Wed
30Thu9:571.87:180.46:085:14Waning Gibbous30Thu
31Fri10:341.88:090.46:095:13Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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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 3:37 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 spring phase. Tonight's moon is 84% 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 maximum.

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 Waning Gibbous (84% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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