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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:09 pm (0.0 ft)
Next high tide : in 6h 23m at 5:52 am (1.1 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 - Dec 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:321.69:53-0.36:334:59Waning Gibbous1Mon
2Tue10:39-0.26:344:59Third Quarter2Tue
3Wed12:091.411:110.06:354:59Third Quarter3Wed
4Thu12:291.111:100.811:190.36:364:59Third Quarter4Thu
5Fri7:490.810:420.46:364:59Third Quarter5Fri
6Sat6:290.94:410.56:375:00Waning Crescent6Sat
7Sun6:071.13:250.26:385:00Waning Crescent7Sun
8Mon6:141.23:410.06:395:00Waning Crescent8Mon
9Tue6:351.44:08-0.26:395:00Waning Crescent9Tue
10Wed7:051.54:42-0.36:405:00New Moon10Wed
11Thu7:401.55:18-0.46:415:01New Moon11Thu
12Fri8:191.65:59-0.56:415:01New Moon12Fri
13Sat8:591.66:42-0.56:425:01New Moon13Sat
14Sun9:401.67:27-0.66:435:01Waxing Crescent14Sun
15Mon10:211.58:12-0.66:435:02Waxing Crescent15Mon
16Tue11:021.48:56-0.56:445:02Waxing Crescent16Tue
17Wed11:401.29:35-0.46:445:03Waxing Crescent17Wed
18Thu10:06-0.26:455:03First Quarter18Thu
19Fri12:090.99:480.610:170.06:455:03First Quarter19Fri
20Sat6:040.69:230.36:465:04First Quarter20Sat
21Sun5:130.82:180.16:475:04Waxing Gibbous21Sun
22Mon5:191.12:41-0.36:475:05Waxing Gibbous22Mon
23Tue5:511.43:24-0.66:475:05Waxing Gibbous23Tue
24Wed6:361.64:13-0.96:485:06Waxing Gibbous24Wed
25Thu7:261.75:06-1.06:485:07Full Moon25Thu
26Fri8:181.76:00-1.06:495:07Full Moon26Fri
27Sat9:091.66:53-1.06:495:08Full Moon27Sat
28Sun9:561.47:45-0.96:495:08Waning Gibbous28Sun
29Mon10:381.28:32-0.76:505:09Waning Gibbous29Mon
30Tue11:111.09:08-0.56:505:10Waning Gibbous30Tue
31Wed11:250.79:30-0.36:505:10Waning Gibbous31Wed
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 11:00 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