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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 3:02 pm (0.0 ft)
Next high tide : in 4h 56m at 4:54 am (1.1 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 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:141.93:310.06:357:19First Quarter1Sat
2Sun5:271.84:190.16:367:18Waxing Gibbous2Sun
3Mon6:371.85:000.26:367:17Waxing Gibbous3Mon
4Tue7:391.75:350.36:377:16Waxing Gibbous4Tue
5Wed8:331.76:000.46:377:14Waxing Gibbous5Wed
6Thu9:221.66:140.66:387:13Full Moon6Thu
7Fri10:091.46:080.86:387:12Full Moon7Fri
8Sat11:011.311:361.05:320.96:397:11Full Moon8Sat
9Sun12:111.14:380.94:181.06:397:10Full Moon9Sun
10Mon11:281.46:300.86:407:08Waning Gibbous10Mon
11Tue11:521.68:130.76:407:07Waning Gibbous11Tue
12Wed9:520.56:417:06Waning Gibbous12Wed
13Thu12:271.711:170.46:417:05Waning Gibbous13Thu
14Fri1:131.912:280.36:427:04Third Quarter14Fri
15Sat2:092.01:310.16:427:02Third Quarter15Sat
16Sun3:172.02:300.16:437:01Third Quarter16Sun
17Mon4:352.13:250.06:437:00Waning Crescent17Mon
18Tue5:582.14:170.16:446:59Waning Crescent18Tue
19Wed7:222.05:040.36:446:58Waning Crescent19Wed
20Thu8:471.85:460.66:456:56Waning Crescent20Thu
21Fri10:211.611:041.06:060.96:456:55New Moon21Fri
22Sat12:301.43:250.95:051.26:466:54New Moon22Sat
23Sun10:071.75:420.76:466:53New Moon23Sun
24Mon10:451.97:270.56:476:51Waxing Crescent24Mon
25Tue11:312.19:010.36:476:50Waxing Crescent25Tue
26Wed10:270.26:486:49Waxing Crescent26Wed
27Thu12:212.211:450.26:486:48First Quarter27Thu
28Fri1:162.112:540.26:496:47First Quarter28Fri
29Sat2:172.11:540.36:496:45First Quarter29Sat
30Sun3:262.02:460.46:506:44First Quarter30Sun
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 9:58 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