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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 9h 29m at 10:32 pm (0.3 ft)
Next high tide (tomorrow) : 8:57 am (0.8 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:371.51:440.77:106:12First Quarter1Sat
2Sun5:341.28:301.212:570.96:115:11Waxing Gibbous2Sun
3Mon9:131.17:371.32:070.912:141.16:115:10Waxing Gibbous3Mon
4Tue7:271.53:120.76:125:10Waxing Gibbous4Tue
5Wed7:421.74:090.46:135:09Full Moon5Wed
6Thu8:101.85:020.36:145:08Full Moon6Thu
7Fri8:441.95:540.26:145:08Full Moon7Fri
8Sat9:201.96:450.16:155:07Waning Gibbous8Sat
9Sun9:561.87:360.16:165:06Waning Gibbous9Sun
10Mon10:321.88:250.26:175:06Waning Gibbous10Mon
11Tue11:071.79:120.26:175:05Waning Gibbous11Tue
12Wed11:381.59:560.36:185:05Third Quarter12Wed
13Thu10:340.46:195:04Third Quarter13Thu
14Fri12:031.411:581.211:020.56:205:04Third Quarter14Fri
15Sat9:411.111:130.66:215:03Third Quarter15Sat
16Sun7:471.110:550.76:215:03Waning Crescent16Sun
17Mon7:031.13:300.86:225:02Waning Crescent17Mon
18Tue6:541.33:180.66:235:02Waning Crescent18Tue
19Wed7:051.43:430.46:245:02Waning Crescent19Wed
20Thu7:281.54:160.36:255:01New Moon20Thu
21Fri7:571.64:540.16:255:01New Moon21Fri
22Sat8:311.75:370.06:265:01New Moon22Sat
23Sun9:091.86:23-0.16:275:00New Moon23Sun
24Mon9:491.87:12-0.16:285:00Waxing Crescent24Mon
25Tue10:311.78:04-0.16:295:00Waxing Crescent25Tue
26Wed11:121.58:56-0.16:295:00Waxing Crescent26Wed
27Thu11:501.39:440.06:305:00First Quarter27Thu
28Fri10:230.26:315:00First Quarter28Fri
29Sat12:041.18:580.910:430.46:324:59First Quarter29Sat
30Sun6:580.910:120.66:334:59First Quarter30Sun
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 3:44 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 38% 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 First Quarter (38% 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