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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 4:09 pm (0.0 ft)
Next high tide (tomorrow) : in 8h 43m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:422.07:230.56:506:43Waning Gibbous1Wed
2Thu11:292.28:590.36:516:42Waning Gibbous2Thu
3Fri10:270.16:526:41Waning Gibbous3Fri
4Sat12:232.311:480.16:526:39Third Quarter4Sat
5Sun1:222.31:000.16:536:38Third Quarter5Sun
6Mon2:272.22:040.26:536:37Third Quarter6Mon
7Tue3:422.02:570.36:546:36Third Quarter7Tue
8Wed5:051.93:410.56:546:35Waning Crescent8Wed
9Thu6:321.74:100.76:556:34Waning Crescent9Thu
10Fri7:561.64:220.96:566:33Waning Crescent10Fri
11Sat9:191.410:351.24:061.06:566:32Waning Crescent11Sat
12Sun10:591.39:471.43:291.03:071.26:576:31New Moon12Sun
13Mon9:371.54:520.96:576:29New Moon13Mon
14Tue9:451.75:550.86:586:28New Moon14Tue
15Wed10:051.86:500.66:596:27New Moon15Wed
16Thu10:331.97:440.56:596:26Waxing Crescent16Thu
17Fri11:072.08:420.47:006:25Waxing Crescent17Fri
18Sat11:482.09:450.47:006:24Waxing Crescent18Sat
19Sun10:520.37:016:23Waxing Crescent19Sun
20Mon12:362.111:550.37:026:22First Quarter20Mon
21Tue1:312.112:530.27:026:21First Quarter21Tue
22Wed2:352.01:450.37:036:20First Quarter22Wed
23Thu3:521.92:320.47:046:19First Quarter23Thu
24Fri5:281.73:110.57:046:18Waxing Gibbous24Fri
25Sat7:291.510:561.13:360.87:056:17Waxing Gibbous25Sat
26Sun9:581.39:061.21:551.03:231.17:066:17Waxing Gibbous26Sun
27Mon8:381.64:000.77:066:16Full Moon27Mon
28Tue8:551.95:230.47:076:15Full Moon28Tue
29Wed9:322.16:370.17:086:14Full Moon29Wed
30Thu10:172.37:49-0.17:086:13Waning Gibbous30Thu
31Fri11:072.39:01-0.17:096:12Waning Gibbous31Fri
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 11:00 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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