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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:56 pm (-0.3 ft)
Next high tide (tomorrow) : in 10h 11m at 7:23 am (1.6 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:101.34:57-0.76:515:11Full Moon1Wed
2Thu7:521.35:35-0.86:515:12Full Moon2Thu
3Fri8:331.26:14-0.86:515:13Full Moon3Fri
4Sat9:111.26:52-0.76:515:13Full Moon4Sat
5Sun9:471.17:26-0.76:525:14Full Moon5Sun
6Mon10:191.07:55-0.66:525:15Waning Gibbous6Mon
7Tue10:500.88:16-0.56:525:16Waning Gibbous7Tue
8Wed11:140.68:25-0.36:525:16Waning Gibbous8Wed
9Thu10:480.38:11-0.16:525:17Third Quarter9Thu
10Fri3:590.47:000.06:525:18Third Quarter10Fri
11Sat3:270.62:17-0.16:525:19Third Quarter11Sat
12Sun3:440.91:40-0.46:525:19Third Quarter12Sun
13Mon4:241.12:16-0.76:525:20Waning Crescent13Mon
14Tue5:171.33:03-1.06:525:21Waning Crescent14Tue
15Wed6:171.43:56-1.26:525:22Waning Crescent15Wed
16Thu7:201.54:52-1.36:525:23New Moon16Thu
17Fri8:211.55:48-1.36:515:24New Moon17Fri
18Sat9:181.36:42-1.16:515:24New Moon18Sat
19Sun10:111.17:32-0.96:515:25New Moon19Sun
20Mon10:580.88:12-0.76:515:26Waxing Crescent20Mon
21Tue11:370.58:30-0.46:505:27Waxing Crescent21Tue
22Wed11:310.17:50-0.16:505:28Waxing Crescent22Wed
23Thu2:170.35:160.06:505:29First Quarter23Thu
24Fri2:210.61:23-0.26:495:29First Quarter24Fri
25Sat2:510.71:32-0.46:495:30First Quarter25Sat
26Sun3:310.92:04-0.66:495:31First Quarter26Sun
27Mon4:191.02:40-0.76:485:32Waxing Gibbous27Mon
28Tue5:131.03:19-0.86:485:33Waxing Gibbous28Tue
29Wed6:081.04:00-0.96:475:34Waxing Gibbous29Wed
30Thu7:011.04:41-0.96:475:34Waxing Gibbous30Thu
31Fri7:491.05:20-0.86:465:35Full Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
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 12:39 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 86% 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 Waxing Gibbous (86% 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