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 : 4:13 pm (0.3 ft)
Next high tide : in 6h 23m at 6:19 am (0.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:140.810:06 AM0.84:210.76:090.16:467:16New Moon1Mon
2Tue10:181.17:39-0.16:457:16New Moon2Tue
3Wed10:511.48:59-0.26:447:17Waxing Crescent3Wed
4Thu11:301.510:13-0.36:437:17Waxing Crescent4Thu
5Fri12:121.611:22-0.36:427:18Waxing Crescent5Fri
6Sat12:581.66:407:18First Quarter6Sat
7Sun1:491.512:27-0.26:397:19First Quarter7Sun
8Mon2:471.41:26-0.26:387:20First Quarter8Mon
9Tue3:571.32:19-0.16:377:20First Quarter9Tue
10Wed5:211.23:050.06:367:21Waxing Gibbous10Wed
11Thu6:521.13:410.16:357:21Waxing Gibbous11Thu
12Fri8:241.04:060.36:347:22Waxing Gibbous12Fri
13Sat11:400.710:000.84:110.42:190.66:337:22Waxing Gibbous13Sat
14Sun10:050.83:430.64:110.56:327:23Full Moon14Sun
15Mon9:381.05:230.36:317:24Full Moon15Mon
16Tue9:411.26:240.26:307:24Full Moon16Tue
17Wed9:591.47:230.06:287:25Full Moon17Wed
18Thu10:271.58:23-0.16:277:25Waning Gibbous18Thu
19Fri11:021.79:28-0.26:267:26Waning Gibbous19Fri
20Sat11:451.810:37-0.36:257:27Waning Gibbous20Sat
21Sun12:341.811:46-0.36:247:27Waning Gibbous21Sun
22Mon1:311.86:237:28Third Quarter22Mon
23Tue2:361.712:51-0.36:227:28Third Quarter23Tue
24Wed3:531.51:50-0.26:227:29Third Quarter24Wed
25Thu5:341.32:40-0.16:217:30Waning Crescent25Thu
26Fri7:551.13:190.26:207:30Waning Crescent26Fri
27Sat10:360.811:030.93:350.53:140.66:197:31Waning Crescent27Sat
28Sun9:101.02:380.84:500.36:187:31Waning Crescent28Sun
29Mon8:531.35:590.06:177:32New Moon29Mon
30Tue9:111.56:59-0.16:167:33New Moon30Tue
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 11:16 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 48% 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 (48% 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