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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:57 pm (0.1 ft)
Next high tide : in 1h 41m at 12:40 pm (1.3 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:331.05:45-0.56:225:57Full Moon1Sun
2Mon10:460.86:26-0.26:215:58Full Moon2Mon
3Tue12:510.26:470.03:060.16:195:58Waning Gibbous3Tue
4Wed12:160.611:27 AM0.46:080.36:120.16:185:59Waning Gibbous4Wed
5Thu11:300.68:49-0.16:176:00Waning Gibbous5Thu
6Fri12:050.910:50-0.26:166:00Waning Gibbous6Fri
7Sat12:521.06:156:01Third Quarter7Sat
8Sun2:451.112:11-0.37:147:02Third Quarter8Sun
9Mon3:461.12:12-0.47:137:02Third Quarter9Mon
10Tue4:541.13:04-0.47:127:03Third Quarter10Tue
11Wed6:061.03:49-0.47:117:03Waning Crescent11Wed
12Thu7:161.04:29-0.37:097:04Waning Crescent12Thu
13Fri8:190.95:03-0.27:087:05Waning Crescent13Fri
14Sat9:140.95:31-0.17:077:05Waning Crescent14Sat
15Sun10:060.85:510.07:067:06New Moon15Sun
16Mon10:580.75:590.27:057:06New Moon16Mon
17Tue12:030.45:490.34:100.37:047:07New Moon17Tue
18Wed11:370.65:150.45:450.37:037:08New Moon18Wed
19Thu1:210.511:39 AM0.74:020.57:130.27:017:08Waxing Crescent19Thu
20Fri11:560.98:460.17:007:09Waxing Crescent20Fri
21Sat12:241.010:190.06:597:09Waxing Crescent21Sat
22Sun1:011.111:41-0.16:587:10Waxing Crescent22Sun
23Mon1:481.26:577:11First Quarter23Mon
24Tue2:461.312:50-0.26:557:11First Quarter24Tue
25Wed3:571.31:52-0.36:547:12First Quarter25Wed
26Thu5:221.32:50-0.36:537:12Waxing Gibbous26Thu
27Fri6:531.33:43-0.36:527:13Waxing Gibbous27Fri
28Sat8:251.24:33-0.26:517:13Waxing Gibbous28Sat
29Sun9:581.05:170.06:507:14Waxing Gibbous29Sun
30Mon12:230.55:480.32:580.46:487:14Full Moon30Mon
31Tue10:520.65:440.55:110.36:477:15Full Moon31Tue
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 5:48 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 transitional phase. Tonight's moon is 27% 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 Crescent (27% 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