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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:51 pm (-0.5 ft)
Next high tide : in 6h 43m at 11:11 am (1.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:481.44:20-0.16:197:48Waxing Gibbous1Fri
2Sat6:311.54:56-0.16:197:48Waxing Gibbous2Sat
3Sun7:151.55:30-0.16:207:47Waxing Gibbous3Sun
4Mon7:571.56:03-0.16:207:46Waxing Gibbous4Mon
5Tue8:381.56:340.06:217:45Full Moon5Tue
6Wed9:161.57:030.06:227:45Full Moon6Wed
7Thu9:521.47:270.16:227:44Full Moon7Thu
8Fri10:261.47:450.26:237:43Full Moon8Fri
9Sat10:571.37:530.36:237:42Waning Gibbous9Sat
10Sun11:271.17:480.56:247:41Waning Gibbous10Sun
11Mon11:521.07:250.66:247:40Waning Gibbous11Mon
12Tue4:030.811:50 AM0.87:330.86:290.66:257:39Waning Gibbous12Tue
13Wed3:251.03:400.66:257:38Third Quarter13Wed
14Thu3:351.12:040.46:267:37Third Quarter14Thu
15Fri4:061.32:330.26:277:37Third Quarter15Fri
16Sat4:501.53:140.06:277:36Third Quarter16Sat
17Sun5:441.64:01-0.16:287:35Waning Crescent17Sun
18Mon6:431.84:50-0.26:287:34Waning Crescent18Mon
19Tue7:441.85:40-0.26:297:33Waning Crescent19Tue
20Wed8:451.86:29-0.16:297:32New Moon20Wed
21Thu9:461.77:160.16:307:31New Moon21Thu
22Fri10:471.67:540.36:307:29New Moon22Fri
23Sat11:491.48:100.66:317:28Waxing Crescent23Sat
24Sun1:021.17:290.86:317:27Waxing Crescent24Sun
25Mon1:390.97:470.76:327:26Waxing Crescent25Mon
26Tue1:341.211:180.66:327:25Waxing Crescent26Tue
27Wed2:051.41:000.46:337:24First Quarter27Wed
28Thu2:511.52:010.36:337:23First Quarter28Thu
29Fri3:451.62:500.26:347:22First Quarter29Fri
30Sat4:431.63:340.26:357:21Waxing Gibbous30Sat
31Sun5:451.64:140.26:357:20Waxing Gibbous31Sun
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 4:31 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 10% 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 Crescent (10% 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