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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:13 pm (0.3 ft)
Next high tide : in 2h 40m at 6:19 am (0.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:251.12:380.06:467:16First Quarter1Sun
2Mon7:081.03:140.16:457:16Waxing Gibbous2Mon
3Tue9:000.93:430.26:447:17Waxing Gibbous3Tue
4Wed10:150.611:090.83:560.43:050.46:437:17Waxing Gibbous4Wed
5Thu9:290.83:310.74:380.26:427:18Full Moon5Thu
6Fri9:271.15:570.06:407:18Full Moon6Fri
7Sat9:501.37:12-0.26:397:19Full Moon7Sat
8Sun10:271.58:27-0.36:387:20Waning Gibbous8Sun
9Mon11:131.69:44-0.36:377:20Waning Gibbous9Mon
10Tue12:031.710:59-0.36:367:21Waning Gibbous10Tue
11Wed12:561.66:357:21Third Quarter11Wed
12Thu1:531.512:09-0.26:347:22Third Quarter12Thu
13Fri2:531.31:10-0.16:337:23Third Quarter13Fri
14Sat4:031.12:000.16:327:23Third Quarter14Sat
15Sun5:570.92:330.36:317:24Waning Crescent15Sun
16Mon11:090.88:490.82:430.52:530.76:297:24Waning Crescent16Mon
17Tue9:310.82:130.64:110.56:287:25Waning Crescent17Tue
18Wed9:001.05:010.46:277:25Waning Crescent18Wed
19Thu8:581.15:420.26:267:26New Moon19Thu
20Fri9:111.36:210.16:257:27New Moon20Fri
21Sat9:311.47:010.16:247:27New Moon21Sat
22Sun9:561.57:430.06:237:28New Moon22Sun
23Mon10:271.58:290.06:227:28Waxing Crescent23Mon
24Tue11:011.59:180.06:217:29Waxing Crescent24Tue
25Wed11:381.510:100.06:217:30Waxing Crescent25Wed
26Thu12:181.511:010.06:207:30Waxing Crescent26Thu
27Fri1:001.511:480.16:197:31First Quarter27Fri
28Sat1:451.46:187:31First Quarter28Sat
29Sun2:371.212:290.26:177:32First Quarter29Sun
30Mon3:581.01:020.36:167:33First 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 11:16 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 58% 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 First Quarter (58% 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