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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 6h 04m at 6:08 pm (-0.8 ft)
Next high tide (tomorrow) : 8:31 am (2.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:120.210:350.54:490.12:430.26:225:57Full Moon1Tue
2Wed10:400.411:560.34:120.24:360.16:215:58Full Moon2Wed
3Thu10:420.63:010.36:180.06:205:58Waning Gibbous3Thu
4Fri11:010.78:04-0.16:195:59Waning Gibbous4Fri
5Sat11:320.99:45-0.26:186:00Waning Gibbous5Sat
6Sun12:131.111:08-0.46:166:00Waning Gibbous6Sun
7Mon1:051.26:156:01Third Quarter7Mon
8Tue2:081.212:17-0.56:146:01Third Quarter8Tue
9Wed3:221.31:18-0.66:136:02Third Quarter9Wed
10Thu4:461.22:14-0.66:126:03Waning Crescent10Thu
11Fri6:131.23:06-0.56:116:03Waning Crescent11Fri
12Sat7:411.03:53-0.36:106:04Waning Crescent12Sat
13Sun10:110.85:30-0.17:097:04New Moon13Sun
14Mon11:440.311:550.75:480.23:200.27:077:05New Moon14Mon
15Tue10:340.55:130.45:250.17:067:06New Moon15Tue
16Wed10:320.87:01-0.17:057:06New Moon16Wed
17Thu10:581.08:28-0.27:047:07Waxing Crescent17Thu
18Fri11:341.29:51-0.27:037:07Waxing Crescent18Fri
19Sat12:151.211:09-0.37:027:08Waxing Crescent19Sat
20Sun1:001.37:007:09Waxing Crescent20Sun
21Mon1:491.212:19-0.36:597:09First Quarter21Mon
22Tue2:461.21:21-0.26:587:10First Quarter22Tue
23Wed3:521.12:14-0.26:577:10First Quarter23Wed
24Thu5:111.03:00-0.16:567:11First Quarter24Thu
25Fri6:371.03:380.06:557:11Waxing Gibbous25Fri
26Sat8:010.94:070.16:537:12Waxing Gibbous26Sat
27Sun9:230.84:220.36:527:13Waxing Gibbous27Sun
28Mon10:340.610:540.74:140.43:080.46:517:13Waxing Gibbous28Mon
29Tue9:520.73:340.54:340.36:507:14Full Moon29Tue
30Wed9:490.95:430.26:497:14Full Moon30Wed
31Thu10:051.16:480.06:487:15Full Moon31Thu
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 1:19 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 4% 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 Crescent (4% 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