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

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 8:02 pm (-0.4 ft)
Next high tide : in 7h 15m at 9:37 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:291.55:07-1.06:515:11New Moon1Wed
2Thu8:181.55:58-1.06:515:12New Moon2Thu
3Fri9:061.46:48-1.06:515:12New Moon3Fri
4Sat9:501.37:35-0.86:515:13Waxing Crescent4Sat
5Sun10:291.18:17-0.76:515:14Waxing Crescent5Sun
6Mon11:010.98:50-0.56:525:14Waxing Crescent6Mon
7Tue11:210.69:09-0.36:525:15Waxing Crescent7Tue
8Wed10:570.49:04-0.26:525:16First Quarter8Wed
9Thu6:160.38:100.06:525:17First Quarter9Thu
10Fri4:360.45:250.06:525:18First Quarter10Fri
11Sat4:230.62:50-0.26:525:18First Quarter11Sat
12Sun4:420.82:46-0.46:525:19Waxing Gibbous12Sun
13Mon5:140.93:10-0.66:525:20Waxing Gibbous13Mon
14Tue5:551.03:42-0.76:525:21Waxing Gibbous14Tue
15Wed6:401.14:20-0.86:525:22Waxing Gibbous15Wed
16Thu7:271.25:00-0.96:515:22Full Moon16Thu
17Fri8:131.25:42-0.96:515:23Full Moon17Fri
18Sat8:591.26:24-0.96:515:24Full Moon18Sat
19Sun9:441.27:06-0.96:515:25Full Moon19Sun
20Mon10:281.07:46-0.86:515:26Waning Gibbous20Mon
21Tue11:120.88:20-0.66:505:27Waning Gibbous21Tue
22Wed11:530.58:41-0.46:505:27Waning Gibbous22Wed
23Thu5:200.18:21-0.16:505:28Third Quarter23Thu
24Fri3:130.45:310.06:495:29Third Quarter24Fri
25Sat3:130.71:07-0.36:495:30Third Quarter25Sat
26Sun3:480.91:48-0.66:495:31Third Quarter26Sun
27Mon4:381.12:36-0.96:485:32Waning Crescent27Mon
28Tue5:351.23:25-1.06:485:33Waning Crescent28Tue
29Wed6:331.24:15-1.16:475:33Waning Crescent29Wed
30Thu7:301.25:03-1.16:475:34New Moon30Thu
31Fri8:221.15:49-1.06:465:35New Moon31Fri
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 2:49 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 100% 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 (100% 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