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

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:36 pm (-0.3 ft)
Next high tide : in 2h 28m at 5:44 am (1.5 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:301.24:38-0.16:038:00Waxing Gibbous1Thu
2Fri6:541.45:09-0.36:038:00Waxing Gibbous2Fri
3Sat7:281.65:46-0.46:048:00Waxing Gibbous3Sat
4Sun8:081.76:28-0.56:048:00Full Moon4Sun
5Mon8:521.87:14-0.66:048:00Full Moon5Mon
6Tue9:391.88:01-0.66:058:00Full Moon6Tue
7Wed10:261.88:48-0.56:058:00Full Moon7Wed
8Thu11:131.79:33-0.46:067:59Waning Gibbous8Thu
9Fri11:581.510:09-0.26:067:59Waning Gibbous9Fri
10Sat12:381.210:270.16:077:59Waning Gibbous10Sat
11Sun12:470.99:540.46:077:59Third Quarter11Sun
12Mon6:570.74:530.56:087:58Third Quarter12Mon
13Tue5:351.03:170.16:087:58Third Quarter13Tue
14Wed5:331.33:51-0.26:097:58Waning Crescent14Wed
15Thu6:011.54:33-0.46:097:58Waning Crescent15Thu
16Fri6:421.75:17-0.56:107:57Waning Crescent16Fri
17Sat7:271.76:01-0.56:107:57Waning Crescent17Sat
18Sun8:141.86:44-0.56:117:56New Moon18Sun
19Mon8:591.77:24-0.46:127:56New Moon19Mon
20Tue9:421.78:00-0.36:127:55New Moon20Tue
21Wed10:211.68:32-0.26:137:55New Moon21Wed
22Thu10:561.48:57-0.16:137:55Waxing Crescent22Thu
23Fri11:271.39:110.16:147:54Waxing Crescent23Fri
24Sat11:521.19:070.36:147:53Waxing Crescent24Sat
25Sun11:590.98:290.46:157:53Waxing Crescent25Sun
26Mon6:480.76:490.56:157:52First Quarter26Mon
27Tue4:400.93:480.46:167:52First Quarter27Tue
28Wed4:301.13:090.26:177:51First Quarter28Wed
29Thu4:511.33:290.06:177:50First Quarter29Thu
30Fri5:271.44:03-0.26:187:50Waxing Gibbous30Fri
31Sat6:131.64:43-0.36:187:49Waxing Gibbous31Sat
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 11:10 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 (79% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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