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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:09 pm (0.0 ft)
Next high tide : in 1m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:031.89:48-0.26:167:33Waning Gibbous1Sat
2Sun11:451.710:40-0.16:157:34Waning Gibbous2Sun
3Mon12:261.611:290.06:147:34Waning Gibbous3Mon
4Tue1:071.56:137:35Third Quarter4Tue
5Wed1:441.312:110.16:127:35Third Quarter5Wed
6Thu2:111.112:420.36:127:36Third Quarter6Thu
7Fri12:460.912:560.46:117:37Third Quarter7Fri
8Sat9:120.912:350.64:130.76:107:37Waning Crescent8Sat
9Sun8:021.04:180.56:097:38Waning Crescent9Sun
10Mon7:441.24:490.36:097:38Waning Crescent10Mon
11Tue7:541.45:250.16:087:39Waning Crescent11Tue
12Wed8:171.56:05-0.16:077:40New Moon12Wed
13Thu8:491.76:49-0.26:077:40New Moon13Thu
14Fri9:261.87:38-0.36:067:41New Moon14Fri
15Sat10:071.98:30-0.46:067:42New Moon15Sat
16Sun10:511.99:25-0.46:057:42Waxing Crescent16Sun
17Mon11:381.910:19-0.36:047:43Waxing Crescent17Mon
18Tue12:251.711:09-0.26:047:43Waxing Crescent18Tue
19Wed1:101.511:500.06:037:44First Quarter19Wed
20Thu1:481.26:037:45First Quarter20Thu
21Fri12:090.912:130.311:490.66:027:45First Quarter21Fri
22Sat8:180.93:500.56:027:46Waxing Gibbous22Sat
23Sun7:161.14:150.26:027:46Waxing Gibbous23Sun
24Mon7:111.44:56-0.16:017:47Waxing Gibbous24Mon
25Tue7:331.65:41-0.36:017:47Waxing Gibbous25Tue
26Wed8:061.86:25-0.46:007:48Full Moon26Wed
27Thu8:451.87:10-0.46:007:49Full Moon27Thu
28Fri9:251.87:54-0.46:007:49Full Moon28Fri
29Sat10:051.88:36-0.36:007:50Full Moon29Sat
30Sun10:431.79:16-0.25:597:50Waning Gibbous30Sun
31Mon11:201.69:52-0.15:597:51Waning Gibbous31Mon
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 transitional phase. Tonight's moon is 68% 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 (68% 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