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

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:17 pm (-0.1 ft)
Next high tide : in 6h 09m at 11:19 am (1.4 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:361.410:37-0.25:476:15Waxing Crescent1Wed
2Thu12:271.411:47-0.25:466:16First Quarter2Thu
3Fri1:221.35:456:16First Quarter3Fri
4Sat2:241.212:47-0.15:436:17First Quarter4Sat
5Sun4:391.11:360.06:427:18First Quarter5Sun
6Mon6:141.03:150.16:417:18Waxing Gibbous6Mon
7Tue7:530.93:420.26:407:19Waxing Gibbous7Tue
8Wed9:230.83:560.46:397:19Waxing Gibbous8Wed
9Thu10:520.710:540.73:530.53:490.66:387:20Waxing Gibbous9Thu
10Fri10:160.83:250.64:520.56:377:20Full Moon10Fri
11Sat10:060.95:450.46:357:21Full Moon11Sat
12Sun10:121.16:350.36:347:22Full Moon12Sun
13Mon10:291.27:270.26:337:22Full Moon13Mon
14Tue10:541.38:210.16:327:23Waning Gibbous14Tue
15Wed11:241.39:200.16:317:23Waning Gibbous15Wed
16Thu11:591.410:220.06:307:24Waning Gibbous16Thu
17Fri12:401.411:230.06:297:24Waning Gibbous17Fri
18Sat1:271.46:287:25Third Quarter18Sat
19Sun2:221.412:220.06:277:26Third Quarter19Sun
20Mon3:331.31:170.06:267:26Third Quarter20Mon
21Tue5:151.22:060.16:257:27Waning Crescent21Tue
22Wed7:321.02:480.26:247:27Waning Crescent22Wed
23Thu10:560.89:580.93:180.42:430.76:237:28Waning Crescent23Thu
24Fri9:470.93:210.74:160.46:227:29Waning Crescent24Fri
25Sat9:241.15:300.26:217:29New Moon25Sat
26Sun9:311.36:380.06:207:30New Moon26Sun
27Mon9:591.57:45-0.16:197:30New Moon27Mon
28Tue10:361.68:51-0.26:187:31Waxing Crescent28Tue
29Wed11:181.79:55-0.26:177:32Waxing Crescent29Wed
30Thu12:011.710:57-0.16:177:32Waxing Crescent30Thu
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 4:18 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 88% 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 (88% 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