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 (tomorrow) : 3:34 pm (-0.3 ft)
Next high tide (tomorrow) : in 8h 35m at 5:09 am (1.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (40% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:471.711:520.16:357:19Third Quarter1Thu
2Fri1:391.91:090.06:367:18Third Quarter2Fri
3Sat2:391.92:130.06:367:16Third Quarter3Sat
4Sun3:461.93:100.06:377:15Third Quarter4Sun
5Mon4:591.94:010.16:377:14Waning Crescent5Mon
6Tue6:131.84:450.26:387:13Waning Crescent6Tue
7Wed7:191.85:220.36:387:12Waning Crescent7Wed
8Thu8:171.75:490.46:397:11Waning Crescent8Thu
9Fri9:081.66:060.66:397:09New Moon9Fri
10Sat9:571.56:040.86:407:08New Moon10Sat
11Sun10:501.311:341.15:340.96:407:07New Moon11Sun
12Mon11:591.211:081.24:170.94:251.06:417:06New Moon12Mon
13Tue11:141.46:070.86:417:05Waxing Crescent13Tue
14Wed11:361.67:450.76:427:03Waxing Crescent14Wed
15Thu9:200.66:427:02Waxing Crescent15Thu
16Fri12:081.710:460.56:437:01Waxing Crescent16Fri
17Sat12:501.912:010.36:437:00First Quarter17Sat
18Sun1:432.01:060.26:446:59First Quarter18Sun
19Mon2:472.02:060.16:446:57First Quarter19Mon
20Tue4:022.13:020.16:456:56First Quarter20Tue
21Wed5:242.13:540.16:456:55Waxing Gibbous21Wed
22Thu6:492.04:420.36:466:54Waxing Gibbous22Thu
23Fri8:151.95:260.56:466:52Waxing Gibbous23Fri
24Sat9:471.711:441.05:550.86:476:51Full Moon24Sat
25Sun11:441.59:551.22:300.95:291.26:476:50Full Moon25Sun
26Mon9:521.65:050.76:486:49Full Moon26Mon
27Tue10:261.96:530.56:486:48Waning Gibbous27Tue
28Wed11:102.18:280.36:496:46Waning Gibbous28Wed
29Thu11:592.29:560.26:496:45Waning Gibbous29Thu
30Fri11:160.26:506:44Waning Gibbous30Fri
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 10:21 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 40% 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 (40% 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