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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 10h 13m at 5:13 pm (-0.7 ft)
Next high tide (tomorrow) : 7:32 am (2.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:131.67:07-0.26:197:48New Moon1Sat
2Sun9:551.67:310.06:197:48New Moon2Sun
3Mon10:371.47:450.26:207:47New Moon3Mon
4Tue11:221.27:420.46:207:46Waxing Crescent4Tue
5Wed12:140.96:580.66:217:45Waxing Crescent5Wed
6Thu2:220.81:590.78:400.64:160.66:227:45Waxing Crescent6Thu
7Fri2:051.112:080.36:227:44First Quarter7Fri
8Sat2:281.31:180.16:237:43First Quarter8Sat
9Sun3:121.62:17-0.26:237:42First Quarter9Sun
10Mon4:081.83:13-0.36:247:41First Quarter10Mon
11Tue5:141.94:08-0.46:247:40Waxing Gibbous11Tue
12Wed6:231.95:01-0.46:257:39Waxing Gibbous12Wed
13Thu7:301.95:50-0.36:267:38Waxing Gibbous13Thu
14Fri8:321.86:33-0.16:267:38Full Moon14Fri
15Sat9:281.67:070.16:277:37Full Moon15Sat
16Sun10:201.57:240.36:277:36Full Moon16Sun
17Mon11:091.27:100.66:287:35Full Moon17Mon
18Tue12:011.06:110.76:287:34Waning Gibbous18Tue
19Wed12:520.91:200.86:430.74:070.86:297:33Waning Gibbous19Wed
20Thu12:451.19:400.66:297:32Waning Gibbous20Thu
21Fri1:041.311:450.46:307:31Waning Gibbous21Fri
22Sat1:361.412:510.36:307:30Third Quarter22Sat
23Sun2:181.51:460.26:317:28Third Quarter23Sun
24Mon3:121.62:370.16:317:27Third Quarter24Mon
25Tue4:151.73:250.16:327:26Third Quarter25Tue
26Wed5:221.74:090.16:337:25Waning Crescent26Wed
27Thu6:261.74:490.16:337:24Waning Crescent27Thu
28Fri7:261.85:240.16:347:23Waning Crescent28Fri
29Sat8:211.75:540.26:347:22Waning Crescent29Sat
30Sun9:161.66:170.46:357:21New Moon30Sun
31Mon10:161.56:260.66:357:20New Moon31Mon
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 12:22 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 spring phase. Tonight's moon is 11% 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 (11% 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