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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:56 pm (-0.3 ft)
Next high tide (tomorrow) : in 8h 45m at 7:23 am (1.6 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:431.25:430.96:367:18Waning Gibbous1Sun
2Mon12:181.11:121.06:100.83:590.96:367:17Waning Gibbous2Mon
3Tue12:141.38:340.76:377:16Waning Gibbous3Tue
4Wed12:331.510:370.56:377:15Waning Gibbous4Wed
5Thu1:061.712:010.36:387:13Third Quarter5Thu
6Fri1:531.81:090.16:387:12Third Quarter6Fri
7Sat2:532.02:110.06:397:11Third Quarter7Sat
8Sun4:052.13:11-0.16:397:10Third Quarter8Sun
9Mon5:252.14:08-0.16:407:09Waning Crescent9Mon
10Tue6:462.15:020.06:407:07Waning Crescent10Tue
11Wed8:052.05:510.26:417:06Waning Crescent11Wed
12Thu9:221.86:330.56:417:05New Moon12Thu
13Fri10:441.66:530.86:427:04New Moon13Fri
14Sat12:120.912:301.43:140.95:541.16:427:03New Moon14Sat
15Sun10:501.56:000.76:437:01Waxing Crescent15Sun
16Mon11:241.88:000.66:437:00Waxing Crescent16Mon
17Tue9:420.46:446:59Waxing Crescent17Tue
18Wed12:051.911:060.36:446:58Waxing Crescent18Wed
19Thu12:512.012:170.36:456:56First Quarter19Thu
20Fri1:422.01:200.36:456:55First Quarter20Fri
21Sat2:412.02:170.36:466:54First Quarter21Sat
22Sun3:521.93:080.36:466:53First Quarter22Sun
23Mon5:101.83:520.46:476:52Waxing Gibbous23Mon
24Tue6:281.84:300.56:476:50Waxing Gibbous24Tue
25Wed7:371.74:580.66:486:49Waxing Gibbous25Wed
26Thu8:401.65:110.86:486:48Waxing Gibbous26Thu
27Fri9:441.511:071.14:591.06:496:47Full Moon27Fri
28Sat11:011.310:171.32:591.04:111.16:496:46Full Moon28Sat
29Sun10:131.54:500.96:506:44Full Moon29Sun
30Mon10:281.76:150.86:506:43Full Moon30Mon
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 12:39 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 86% 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 Waxing Gibbous (86% 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