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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 9h 05m at 7:03 pm (-0.8 ft)
Next high tide (tomorrow) : 9:29 am (2.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:041.78:27-0.35:597:52New Moon1Fri
2Sat10:421.79:06-0.25:597:52Waxing Crescent2Sat
3Sun11:171.59:38-0.15:587:53Waxing Crescent3Sun
4Mon11:461.410:020.15:587:53Waxing Crescent4Mon
5Tue12:061.210:140.25:587:54Waxing Crescent5Tue
6Wed11:591.010:030.45:587:54First Quarter6Wed
7Thu9:520.99:090.55:587:55First Quarter7Thu
8Fri7:260.96:300.55:587:55First Quarter8Fri
9Sat6:411.04:380.35:587:56First Quarter9Sat
10Sun6:371.24:370.15:587:56Waxing Gibbous10Sun
11Mon6:541.34:59-0.15:587:56Waxing Gibbous11Mon
12Tue7:211.55:29-0.25:587:57Waxing Gibbous12Tue
13Wed7:551.66:04-0.35:587:57Waxing Gibbous13Wed
14Thu8:331.76:42-0.45:587:57Full Moon14Thu
15Fri9:131.77:22-0.45:587:58Full Moon15Fri
16Sat9:541.78:03-0.45:597:58Full Moon16Sat
17Sun10:361.78:44-0.35:597:58Waning Gibbous17Sun
18Mon11:171.59:21-0.25:597:58Waning Gibbous18Mon
19Tue11:561.39:480.05:597:59Waning Gibbous19Tue
20Wed12:211.19:530.25:597:59Waning Gibbous20Wed
21Thu10:110.89:010.46:007:59Third Quarter21Thu
22Fri6:260.84:200.46:007:59Third Quarter22Fri
23Sat5:491.13:390.16:007:59Third Quarter23Sat
24Sun5:581.34:10-0.26:008:00Waning Crescent24Sun
25Mon6:281.54:50-0.36:018:00Waning Crescent25Mon
26Tue7:081.65:33-0.46:018:00Waning Crescent26Tue
27Wed7:511.76:15-0.56:018:00Waning Crescent27Wed
28Thu8:351.76:55-0.46:028:00New Moon28Thu
29Fri9:171.67:31-0.46:028:00New Moon29Fri
30Sat9:551.58:03-0.36:028:00New Moon30Sat
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 2:16 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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