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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 1h 50m at 9:22 pm (0.1 ft)
Next high tide (tomorrow) : 12:03 pm (1.0 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:051.31:270.16:157:33First Quarter1Wed
2Thu4:181.12:040.26:157:34First Quarter2Thu
3Fri6:191.02:280.46:147:34Waxing Gibbous3Fri
4Sat10:360.89:040.82:320.52:560.76:137:35Waxing Gibbous4Sat
5Sun9:180.92:010.74:120.56:127:36Waxing Gibbous5Sun
6Mon8:531.15:090.36:117:36Full Moon6Mon
7Tue8:571.36:030.16:117:37Full Moon7Tue
8Wed9:181.66:58-0.16:107:38Full Moon8Wed
9Thu9:501.77:57-0.36:097:38Full Moon9Thu
10Fri10:301.99:00-0.46:097:39Waning Gibbous10Fri
11Sat11:161.910:05-0.46:087:39Waning Gibbous11Sat
12Sun12:061.911:10-0.46:077:40Waning Gibbous12Sun
13Mon12:591.86:077:41Third Quarter13Mon
14Tue1:531.612:11-0.36:067:41Third Quarter14Tue
15Wed2:481.41:04-0.16:057:42Third Quarter15Wed
16Thu3:401.11:430.16:057:42Third Quarter16Thu
17Fri10:530.97:560.81:560.43:480.86:047:43Waning Crescent17Fri
18Sat9:031.01:090.74:350.56:047:44Waning Crescent18Sat
19Sun8:261.25:200.26:037:44Waning Crescent19Sun
20Mon8:281.46:030.06:037:45New Moon20Mon
21Tue8:461.66:43-0.16:027:45New Moon21Tue
22Wed9:121.77:21-0.26:027:46New Moon22Wed
23Thu9:411.78:01-0.26:027:47New Moon23Thu
24Fri10:131.78:42-0.26:017:47Waxing Crescent24Fri
25Sat10:481.79:26-0.26:017:48Waxing Crescent25Sat
26Sun11:251.710:12-0.26:007:48Waxing Crescent26Sun
27Mon12:031.610:56-0.16:007:49Waxing Crescent27Mon
28Tue12:401.511:350.06:007:49First Quarter28Tue
29Wed1:141.36:007:50First Quarter29Wed
30Thu1:371.112:040.15:597:51First Quarter30Thu
31Fri12:320.912:170.35:597:51First Quarter31Fri
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 4:42 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 80% 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 (80% 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