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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 3:44 pm (0.3 ft)
Next high tide : in 2h 07m at 5:21 am (0.9 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (51% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:221.81:350.06:357:20Third Quarter1Sun
2Mon3:261.92:35-0.16:357:18Third Quarter2Mon
3Tue4:412.03:32-0.16:367:17Waning Crescent3Tue
4Wed5:592.04:26-0.16:367:16Waning Crescent4Wed
5Thu7:181.95:150.16:377:15Waning Crescent5Thu
6Fri8:341.85:570.36:377:14Waning Crescent6Fri
7Sat9:501.66:260.66:387:13New Moon7Sat
8Sun11:141.411:111.06:130.96:387:11New Moon8Sun
9Mon1:151.24:330.84:251.16:397:10New Moon9Mon
10Tue11:061.56:390.76:397:09Waxing Crescent10Tue
11Wed11:401.78:260.56:407:08Waxing Crescent11Wed
12Thu10:010.46:407:07Waxing Crescent12Thu
13Fri12:201.811:230.46:417:05Waxing Crescent13Fri
14Sat1:061.812:320.36:417:04First Quarter14Sat
15Sun1:581.81:330.36:427:03First Quarter15Sun
16Mon3:001.82:260.36:427:02First Quarter16Mon
17Tue4:111.83:140.46:437:01First Quarter17Tue
18Wed5:271.83:550.46:436:59Waxing Gibbous18Wed
19Thu6:401.74:290.56:446:58Waxing Gibbous19Thu
20Fri7:471.64:520.76:446:57Waxing Gibbous20Fri
21Sat8:511.54:590.86:456:56Waxing Gibbous21Sat
22Sun10:001.410:311.14:411.06:456:55Full Moon22Sun
23Mon11:261.310:061.33:291.03:461.16:466:53Full Moon23Mon
24Tue10:131.55:070.86:466:52Full Moon24Tue
25Wed10:361.76:310.76:476:51Full Moon25Wed
26Thu11:091.97:530.56:476:50Waning Gibbous26Thu
27Fri11:522.09:170.46:486:49Waning Gibbous27Fri
28Sat10:400.36:496:47Waning Gibbous28Sat
29Sun12:442.111:570.26:496:46Third Quarter29Sun
30Mon1:442.21:050.16:506:45Third Quarter30Mon
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 10:32 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 neap phase. Tonight's moon is 51% 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 minimum.

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 Third Quarter (51% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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