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 11h 00m 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 - Nov 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:021.812:250.46:105:12Third Quarter1Tue
2Wed1:561.612:570.56:115:11Third Quarter2Wed
3Thu3:031.41:120.76:125:10Waning Crescent3Thu
4Fri5:241.28:321.112:570.96:125:09Waning Crescent4Fri
5Sat9:121.07:251.32:230.911:22 AM1.06:135:09Waning Crescent5Sat
6Sun7:091.43:170.76:145:08Waning Crescent6Sun
7Mon7:181.64:010.56:155:07New Moon7Mon
8Tue7:401.84:430.36:155:07New Moon8Tue
9Wed8:091.95:260.26:165:06New Moon9Wed
10Thu8:452.06:130.16:175:06New Moon10Thu
11Fri9:252.07:040.06:185:05Waxing Crescent11Fri
12Sat10:092.18:01-0.16:185:04Waxing Crescent12Sat
13Sun10:572.09:00-0.16:195:04Waxing Crescent13Sun
14Mon11:471.99:59-0.16:205:03Waxing Crescent14Mon
15Tue10:53-0.16:215:03First Quarter15Tue
16Wed12:401.811:400.16:225:03First Quarter16Wed
17Thu1:381.512:150.36:225:02First Quarter17Thu
18Fri3:141.18:151.012:220.66:235:02Waxing Gibbous18Fri
19Sat6:411.11:500.86:245:01Waxing Gibbous19Sat
20Sun6:231.42:550.46:255:01Waxing Gibbous20Sun
21Mon6:431.73:500.06:265:01Waxing Gibbous21Mon
22Tue7:181.94:43-0.26:265:01Full Moon22Tue
23Wed8:002.05:36-0.46:275:00Full Moon23Wed
24Thu8:442.06:30-0.56:285:00Full Moon24Thu
25Fri9:302.07:25-0.46:295:00Waning Gibbous25Fri
26Sat10:141.88:19-0.46:305:00Waning Gibbous26Sat
27Sun10:561.79:11-0.36:305:00Waning Gibbous27Sun
28Mon11:341.59:57-0.16:315:00Waning Gibbous28Mon
29Tue10:340.06:324:59Third Quarter29Tue
30Wed12:051.310:580.26:334:59Third Quarter30Wed
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 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