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

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:17 pm (-0.1 ft)
Next high tide : in 10h 22m at 11:19 am (1.4 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:031.13:380.26:187:49First Quarter1Sat
2Sun5:351.34:020.16:197:48Waxing Gibbous2Sun
3Mon6:161.44:340.06:197:47Waxing Gibbous3Mon
4Tue7:001.55:08-0.16:207:47Waxing Gibbous4Tue
5Wed7:451.65:44-0.16:207:46Waxing Gibbous5Wed
6Thu8:311.66:20-0.16:217:45Full Moon6Thu
7Fri9:171.66:56-0.16:227:44Full Moon7Fri
8Sat10:041.67:310.06:227:43Full Moon8Sat
9Sun10:511.48:010.26:237:43Full Moon9Sun
10Mon11:401.38:180.46:237:42Waning Gibbous10Mon
11Tue12:321.08:030.66:247:41Waning Gibbous11Tue
12Wed3:530.81:440.88:210.76:220.76:247:40Waning Gibbous12Wed
13Thu3:121.012:500.56:257:39Third Quarter13Thu
14Fri3:271.21:540.36:267:38Third Quarter14Fri
15Sat4:071.42:470.16:267:37Third Quarter15Sat
16Sun4:581.63:370.06:277:36Waning Crescent16Sun
17Mon5:561.64:24-0.16:277:35Waning Crescent17Mon
18Tue6:541.75:09-0.16:287:34Waning Crescent18Tue
19Wed7:501.75:490.06:287:33Waning Crescent19Wed
20Thu8:411.66:240.16:297:32New Moon20Thu
21Fri9:281.56:510.36:297:31New Moon21Fri
22Sat10:101.47:080.46:307:30New Moon22Sat
23Sun10:491.37:120.56:307:29New Moon23Sun
24Mon11:261.27:000.76:317:28Waxing Crescent24Mon
25Tue12:051.06:230.86:317:27Waxing Crescent25Tue
26Wed1:431.012:470.97:100.85:070.86:327:26Waxing Crescent26Wed
27Thu1:411.111:150.76:327:25Waxing Crescent27Thu
28Fri2:011.212:590.66:337:24First Quarter28Fri
29Sat2:361.31:430.56:347:23First Quarter29Sat
30Sun3:241.52:240.46:347:22First Quarter30Sun
31Mon4:201.53:050.36:357:20First Quarter31Mon
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 4:18 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 88% 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 Gibbous (88% 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