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

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:26 pm (-0.4 ft)
Next high tide : in 4h 10m at 8:58 am (1.7 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:300.82:23-0.26:515:11First Quarter1Sat
2Sun5:061.02:55-0.56:515:12Waxing Gibbous2Sun
3Mon5:471.13:33-0.66:515:13Waxing Gibbous3Mon
4Tue6:311.14:11-0.76:515:13Waxing Gibbous4Tue
5Wed7:131.14:48-0.76:515:14Waxing Gibbous5Wed
6Thu7:531.15:22-0.76:525:15Full Moon6Thu
7Fri8:291.05:53-0.66:525:16Full Moon7Fri
8Sat9:040.96:21-0.66:525:16Full Moon8Sat
9Sun9:350.86:46-0.56:525:17Full Moon9Sun
10Mon10:040.77:05-0.46:525:18Waning Gibbous10Mon
11Tue10:280.67:14-0.36:525:19Waning Gibbous11Tue
12Wed10:390.47:09-0.26:525:20Waning Gibbous12Wed
13Thu4:510.26:43-0.16:525:20Waning Gibbous13Thu
14Fri3:130.35:440.06:525:21Third Quarter14Fri
15Sat3:140.53:46-0.16:515:22Third Quarter15Sat
16Sun3:390.72:15-0.36:515:23Third Quarter16Sun
17Mon4:180.82:18-0.46:515:24Third Quarter17Mon
18Tue5:051.02:46-0.66:515:25Waning Crescent18Tue
19Wed5:571.13:24-0.86:515:25Waning Crescent19Wed
20Thu6:511.14:06-0.96:505:26Waning Crescent20Thu
21Fri7:461.24:51-0.96:505:27New Moon21Fri
22Sat8:421.15:37-0.96:505:28New Moon22Sat
23Sun9:361.06:21-0.86:495:29New Moon23Sun
24Mon10:310.77:00-0.66:495:30New Moon24Mon
25Tue11:270.57:24-0.46:495:30Waxing Crescent25Tue
26Wed2:390.17:12-0.15:400.16:485:31Waxing Crescent26Wed
27Thu12:310.21:380.35:290.011:33-0.16:485:32Waxing Crescent27Thu
28Fri1:530.56:475:33First Quarter28Fri
29Sat2:330.712:50-0.46:475:34First Quarter29Sat
30Sun3:240.81:41-0.66:465:35First Quarter30Sun
31Mon4:210.92:28-0.76:465:35First Quarter31Mon
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 2:12 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 100% 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 Full Moon (100% 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