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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 6:01 pm (-0.5 ft)
Next high tide : in 2h 50m at 7:36 am (2.0 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:421.22:08-0.16:477:15First Quarter1Sat
2Sun4:591.12:54-0.16:467:16Waxing Gibbous2Sun
3Mon6:281.03:340.06:447:17Waxing Gibbous3Mon
4Tue7:531.04:060.16:437:17Waxing Gibbous4Tue
5Wed9:100.94:280.36:427:18Waxing Gibbous5Wed
6Thu11:460.610:260.84:350.42:450.66:417:18Full Moon6Thu
7Fri10:410.711:560.74:200.54:180.56:407:19Full Moon7Fri
8Sat10:210.83:300.65:280.46:397:19Full Moon8Sat
9Sun10:251.06:320.36:387:20Full Moon9Sun
10Mon10:421.17:350.26:377:20Waning Gibbous10Mon
11Tue11:071.38:410.16:357:21Waning Gibbous11Tue
12Wed11:401.49:500.06:347:22Waning Gibbous12Wed
13Thu12:191.511:01-0.16:337:22Waning Gibbous13Thu
14Fri1:061.56:327:23Third Quarter14Fri
15Sat2:021.512:08-0.26:317:23Third Quarter15Sat
16Sun3:091.51:11-0.26:307:24Third Quarter16Sun
17Mon4:351.42:08-0.16:297:25Third Quarter17Mon
18Tue6:261.22:590.06:287:25Waning Crescent18Tue
19Wed8:331.13:420.26:277:26Waning Crescent19Wed
20Thu11:130.710:530.94:080.53:080.66:267:26Waning Crescent20Thu
21Fri9:560.93:550.74:480.46:257:27New Moon21Fri
22Sat9:351.16:040.26:247:27New Moon22Sat
23Sun9:481.37:120.06:237:28New Moon23Sun
24Mon10:181.58:16-0.16:227:29Waxing Crescent24Mon
25Tue10:541.69:18-0.16:217:29Waxing Crescent25Tue
26Wed11:331.610:18-0.16:207:30Waxing Crescent26Wed
27Thu12:131.611:15-0.16:197:30Waxing Crescent27Thu
28Fri12:541.56:187:31First Quarter28Fri
29Sat1:361.412:080.06:177:32First Quarter29Sat
30Sun2:201.312:560.16:167:32First Quarter30Sun
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 12:48 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 spring phase. Tonight's moon is 6% 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 maximum.

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 Waning Crescent (6% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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