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 11h 26m 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 - Aug 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:261.87:34-0.46:187:49Full Moon1Fri
2Sat10:161.88:14-0.26:197:48Full Moon2Sat
3Sun11:071.68:460.06:207:47Waning Gibbous3Sun
4Mon11:591.38:590.36:207:46Waning Gibbous4Mon
5Tue1:001.08:100.66:217:46Waning Gibbous5Tue
6Wed3:210.810:170.66:217:45Waning Gibbous6Wed
7Thu2:441.11:020.26:227:44Third Quarter7Thu
8Fri3:081.42:05-0.16:227:43Third Quarter8Fri
9Sat3:541.63:01-0.36:237:42Third Quarter9Sat
10Sun4:501.83:54-0.46:247:42Waning Crescent10Sun
11Mon5:521.94:46-0.46:247:41Waning Crescent11Mon
12Tue6:551.95:35-0.46:257:40Waning Crescent12Tue
13Wed7:551.86:20-0.26:257:39Waning Crescent13Wed
14Thu8:491.86:58-0.16:267:38New Moon14Thu
15Fri9:361.77:280.16:267:37New Moon15Fri
16Sat10:171.57:470.26:277:36New Moon16Sat
17Sun10:551.47:490.46:277:35New Moon17Sun
18Mon11:331.27:260.66:287:34Waxing Crescent18Mon
19Tue12:131.06:200.76:297:33Waxing Crescent19Tue
20Wed1:390.91:200.88:130.73:510.86:297:32Waxing Crescent20Wed
21Thu1:311.111:530.66:307:31Waxing Crescent21Thu
22Fri1:511.312:560.46:307:30First Quarter22Fri
23Sat2:271.51:450.26:317:29First Quarter23Sat
24Sun3:161.62:330.16:317:28First Quarter24Sun
25Mon4:151.73:210.06:327:27First Quarter25Mon
26Tue5:211.84:08-0.16:327:26Waxing Gibbous26Tue
27Wed6:281.94:55-0.16:337:25Waxing Gibbous27Wed
28Thu7:321.95:40-0.16:337:23Waxing Gibbous28Thu
29Fri8:341.96:240.06:347:22Full Moon29Fri
30Sat9:351.87:030.26:347:21Full Moon30Sat
31Sun10:401.77:340.56:357:20Full Moon31Sun
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