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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 04m at 8:33 pm (-0.3 ft)
Next high tide (tomorrow) : 10:48 am (1.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:150.91:511.05:450.85:401.06:357:19Waxing Crescent1Fri
2Sat12:471.18:550.76:367:18Waxing Crescent2Sat
3Sun1:071.311:290.66:367:16Waxing Crescent3Sun
4Mon1:441.512:500.56:377:15First Quarter4Mon
5Tue2:291.61:460.46:377:14First Quarter5Tue
6Wed3:211.62:340.36:387:13First Quarter6Wed
7Thu4:211.73:190.36:387:12First Quarter7Thu
8Fri5:281.74:020.36:397:10Waxing Gibbous8Fri
9Sat6:341.74:410.36:397:09Waxing Gibbous9Sat
10Sun7:341.75:160.46:407:08Waxing Gibbous10Sun
11Mon8:281.75:450.56:407:07Waxing Gibbous11Mon
12Tue9:181.66:050.66:417:06Full Moon12Tue
13Wed10:061.56:130.86:417:04Full Moon13Wed
14Thu10:571.46:040.96:427:03Full Moon14Thu
15Fri12:211.012:001.34:051.05:301.06:427:02Full Moon15Fri
16Sat1:531.16:100.93:541.16:437:01Waning Gibbous16Sat
17Sun12:011.48:120.86:437:00Waning Gibbous17Sun
18Mon12:241.610:090.66:446:58Waning Gibbous18Mon
19Tue1:011.711:420.56:446:57Third Quarter19Tue
20Wed1:491.912:550.36:456:56Third Quarter20Wed
21Thu2:501.91:580.26:456:55Third Quarter21Thu
22Fri4:032.02:560.26:466:54Third Quarter22Fri
23Sat5:252.03:510.26:466:52Waning Crescent23Sat
24Sun6:511.94:400.46:476:51Waning Crescent24Sun
25Mon8:131.85:230.56:476:50Waning Crescent25Mon
26Tue9:331.75:520.86:486:49New Moon26Tue
27Wed10:561.511:181.15:521.06:486:48New Moon27Wed
28Thu12:421.34:180.94:451.26:496:46New Moon28Thu
29Fri10:501.56:060.86:506:45Waxing Crescent29Fri
30Sat11:161.77:390.76:506:44Waxing Crescent30Sat
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 3:40 am — 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 97% 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 Full Moon (97% 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