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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 28m at 8:33 pm (-0.3 ft)
Next high tide (tomorrow) : 10:48 am (1.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:521.03:43-0.66:215:57Waxing Gibbous1Sat
2Sun8:011.04:27-0.56:205:58Waxing Gibbous2Sun
3Mon9:060.85:05-0.36:195:59Full Moon3Mon
4Tue10:090.75:31-0.16:185:59Full Moon4Tue
5Wed11:560.311:170.55:330.13:070.26:176:00Full Moon5Wed
6Thu11:090.44:580.35:100.26:166:00Waning Gibbous6Thu
7Fri12:530.411:08 AM0.63:230.36:590.16:156:01Waning Gibbous7Fri
8Sat11:280.78:500.06:146:02Waning Gibbous8Sat
9Sun12:580.811:30-0.17:137:02Waning Gibbous9Sun
10Mon1:350.97:127:03Third Quarter10Mon
11Tue2:200.912:43-0.17:107:04Third Quarter11Tue
12Wed3:141.01:41-0.27:097:04Third Quarter12Wed
13Thu4:201.02:31-0.27:087:05Third Quarter13Thu
14Fri5:351.03:15-0.27:077:05Waning Crescent14Fri
15Sat6:490.93:54-0.27:067:06Waning Crescent15Sat
16Sun7:570.94:28-0.17:057:07Waning Crescent16Sun
17Mon9:000.94:550.07:047:07Waning Crescent17Mon
18Tue10:030.85:130.17:027:08New Moon18Tue
19Wed11:590.411:110.75:200.23:070.47:017:08New Moon19Wed
20Thu11:190.55:120.44:510.37:007:09New Moon20Thu
21Fri12:400.611:13 AM0.74:330.56:220.26:597:09New Moon21Fri
22Sat11:270.97:530.16:587:10Waxing Crescent22Sat
23Sun11:541.09:27-0.16:577:11Waxing Crescent23Sun
24Mon12:321.210:58-0.26:557:11Waxing Crescent24Mon
25Tue1:191.36:547:12First Quarter25Tue
26Wed2:151.312:17-0.26:537:12First Quarter26Wed
27Thu3:221.31:26-0.36:527:13First Quarter27Thu
28Fri4:441.22:25-0.26:517:13First Quarter28Fri
29Sat6:211.13:17-0.16:497:14Waxing Gibbous29Sat
30Sun8:011.04:000.06:487:15Waxing Gibbous30Sun
31Mon9:360.94:300.26:477:15Waxing Gibbous31Mon
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 3:40 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 97% 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 Full Moon (97% 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