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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 06m at 9:22 pm (0.1 ft)
Next high tide (tomorrow) : 12:03 pm (1.0 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:281.012:00-0.36:225:57First Quarter1Fri
2Sat2:191.012:57-0.46:215:58First Quarter2Sat
3Sun3:191.01:46-0.56:205:58First Quarter3Sun
4Mon4:281.12:33-0.56:185:59Waxing Gibbous4Mon
5Tue5:381.03:17-0.56:176:00Waxing Gibbous5Tue
6Wed6:431.03:59-0.46:166:00Waxing Gibbous6Wed
7Thu7:391.04:36-0.46:156:01Waxing Gibbous7Thu
8Fri8:300.95:06-0.36:146:02Full Moon8Fri
9Sat9:190.95:28-0.16:136:02Full Moon9Sat
10Sun11:110.76:350.07:127:03Full Moon10Sun
11Mon12:350.36:230.24:170.37:117:03Full Moon11Mon
12Tue12:180.612:010.55:410.36:260.27:107:04Waning Gibbous12Tue
13Wed12:030.78:260.07:087:05Waning Gibbous13Wed
14Thu12:240.910:18-0.17:077:05Waning Gibbous14Thu
15Fri1:001.111:48-0.37:067:06Waning Gibbous15Fri
16Sat1:481.37:057:06Third Quarter16Sat
17Sun2:481.41:03-0.57:047:07Third Quarter17Sun
18Mon4:011.42:09-0.67:037:08Third Quarter18Mon
19Tue5:251.43:10-0.67:017:08Waning Crescent19Tue
20Wed6:531.44:06-0.67:007:09Waning Crescent20Wed
21Thu8:191.24:58-0.46:597:09Waning Crescent21Thu
22Fri9:411.15:43-0.26:587:10Waning Crescent22Fri
23Sat11:070.96:140.16:577:10New Moon23Sat
24Sun11:370.56:150.44:270.36:567:11New Moon24Sun
25Mon1:000.710:51 AM0.74:590.66:230.26:547:12New Moon25Mon
26Tue10:591.07:570.06:537:12Waxing Crescent26Tue
27Wed11:251.19:20-0.16:527:13Waxing Crescent27Wed
28Thu11:591.310:36-0.16:517:13Waxing Crescent28Thu
29Fri12:361.311:44-0.26:507:14Waxing Crescent29Fri
30Sat1:191.46:497:14First Quarter30Sat
31Sun2:101.312:47-0.26:477:15First Quarter31Sun
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 4:42 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 80% 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 (80% 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