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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:34 pm (-0.3 ft)
Next high tide (tomorrow) : in 7h 27m at 5:09 am (1.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (40% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:541.08:310.56:187:49Waning Gibbous1Mon
2Tue3:220.78:450.66:197:48Waning Gibbous2Tue
3Wed2:291.012:430.36:207:47Third Quarter3Wed
4Thu2:521.31:530.06:207:46Third Quarter4Thu
5Fri3:361.62:49-0.26:217:46Third Quarter5Fri
6Sat4:301.73:40-0.36:217:45Waning Crescent6Sat
7Sun5:291.84:29-0.46:227:44Waning Crescent7Sun
8Mon6:291.85:15-0.36:227:43Waning Crescent8Mon
9Tue7:271.75:57-0.26:237:42Waning Crescent9Tue
10Wed8:201.76:33-0.16:247:41New Moon10Wed
11Thu9:051.67:040.06:247:41New Moon11Thu
12Fri9:451.57:260.16:257:40New Moon12Fri
13Sat10:221.47:370.36:257:39New Moon13Sat
14Sun10:571.37:310.56:267:38Waxing Crescent14Sun
15Mon11:321.16:560.66:267:37Waxing Crescent15Mon
16Tue2:180.812:110.95:170.85:410.76:277:36Waxing Crescent16Tue
17Wed1:301.09:220.76:277:35Waxing Crescent17Wed
18Thu1:351.212:160.56:287:34First Quarter18Thu
19Fri2:011.41:070.36:287:33First Quarter19Fri
20Sat2:421.51:550.16:297:32First Quarter20Sat
21Sun3:351.72:44-0.16:307:31First Quarter21Sun
22Mon4:391.83:35-0.26:307:30Waxing Gibbous22Mon
23Tue5:481.94:27-0.36:317:29Waxing Gibbous23Tue
24Wed6:572.05:17-0.36:317:28Waxing Gibbous24Wed
25Thu8:052.06:07-0.26:327:27Waxing Gibbous25Thu
26Fri9:121.96:530.06:327:26Full Moon26Fri
27Sat10:201.77:330.36:337:24Full Moon27Sat
28Sun11:381.57:460.76:337:23Full Moon28Sun
29Mon12:540.81:331.24:200.76:141.06:347:22Waning Gibbous29Mon
30Tue7:380.66:347:21Waning Gibbous30Tue
31Wed12:031.410:080.36:357:20Waning Gibbous31Wed
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 10:21 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 40% 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 Third Quarter (40% 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