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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 6:08 pm (-0.8 ft)
Next high tide (tomorrow) : in 10h 11m at 7:32 am (2.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:371.312:03-0.16:467:16First Quarter1Thu
2Fri2:341.31:04-0.16:457:16First Quarter2Fri
3Sat3:401.21:56-0.16:447:17First Quarter3Sat
4Sun4:591.12:390.06:437:17First Quarter4Sun
5Mon6:331.03:130.16:427:18Waxing Gibbous5Mon
6Tue8:190.93:340.36:407:18Waxing Gibbous6Tue
7Wed10:220.610:230.83:380.42:370.56:397:19Waxing Gibbous7Wed
8Thu9:200.83:070.64:130.36:387:20Waxing Gibbous8Thu
9Fri9:101.05:260.16:377:20Full Moon9Fri
10Sat9:251.36:34-0.16:367:21Full Moon10Sat
11Sun9:561.57:44-0.26:357:21Full Moon11Sun
12Mon10:371.78:56-0.36:347:22Waning Gibbous12Mon
13Tue11:251.810:10-0.46:337:22Waning Gibbous13Tue
14Wed12:171.811:23-0.46:327:23Waning Gibbous14Wed
15Thu1:141.76:317:24Third Quarter15Thu
16Fri2:161.612:31-0.36:307:24Third Quarter16Fri
17Sat3:231.41:29-0.26:297:25Third Quarter17Sat
18Sun4:531.12:160.16:287:25Third Quarter18Sun
19Mon7:300.92:450.36:267:26Waning Crescent19Mon
20Tue9:520.82:380.63:380.66:257:27Waning Crescent20Tue
21Wed8:491.04:460.46:247:27Waning Crescent21Wed
22Thu8:391.25:370.26:247:28New Moon22Thu
23Fri8:531.46:200.06:237:28New Moon23Fri
24Sat9:161.57:020.06:227:29New Moon24Sat
25Sun9:431.67:43-0.16:217:30New Moon25Sun
26Mon10:141.68:28-0.16:207:30Waxing Crescent26Mon
27Tue10:491.69:17-0.16:197:31Waxing Crescent27Tue
28Wed11:271.610:10-0.16:187:31Waxing Crescent28Wed
29Thu12:071.611:020.06:177:32Waxing Crescent29Thu
30Fri12:501.511:490.16:167:33First Quarter30Fri
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 12:50 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 11% 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 (11% 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