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 7h 55m 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 - Jul 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:070.94:340.36:038:00First Quarter1Tue
2Wed6:381.04:240.16:038:00Waxing Gibbous2Wed
3Thu6:461.24:50-0.16:038:00Waxing Gibbous3Thu
4Fri7:101.45:22-0.26:048:00Waxing Gibbous4Fri
5Sat7:411.55:54-0.36:048:00Waxing Gibbous5Sat
6Sun8:141.56:26-0.36:058:00Full Moon6Sun
7Mon8:481.56:58-0.36:057:59Full Moon7Mon
8Tue9:211.57:28-0.26:067:59Full Moon8Tue
9Wed9:541.57:58-0.26:067:59Full Moon9Wed
10Thu10:261.48:26-0.16:077:59Waning Gibbous10Thu
11Fri10:571.38:500.06:077:59Waning Gibbous11Fri
12Sat11:241.29:060.16:087:58Waning Gibbous12Sat
13Sun11:451.19:110.26:087:58Waning Gibbous13Sun
14Mon11:460.98:580.36:097:58Third Quarter14Mon
15Tue8:380.88:120.46:097:57Third Quarter15Tue
16Wed6:100.85:430.46:107:57Third Quarter16Wed
17Thu5:481.03:450.26:107:57Third Quarter17Thu
18Fri5:591.23:550.06:117:56Waning Crescent18Fri
19Sat6:281.44:28-0.26:117:56Waning Crescent19Sat
20Sun7:071.55:10-0.46:127:55Waning Crescent20Sun
21Mon7:531.75:57-0.56:127:55Waning Crescent21Mon
22Tue8:431.86:47-0.56:137:54New Moon22Tue
23Wed9:351.87:36-0.46:147:54New Moon23Wed
24Thu10:271.78:24-0.36:147:53New Moon24Thu
25Fri11:171.59:04-0.16:157:53Waxing Crescent25Fri
26Sat12:041.39:280.26:157:52Waxing Crescent26Sat
27Sun12:401.09:110.46:167:52Waxing Crescent27Sun
28Mon6:550.77:100.66:167:51First Quarter28Mon
29Tue4:450.92:550.46:177:50First Quarter29Tue
30Wed4:411.13:090.26:187:50First Quarter30Wed
31Thu5:091.33:430.06:187:49First Quarter31Thu
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