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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:06 pm (0.3 ft)
Next high tide : in 3h 05m at 12:03 pm (1.0 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:231.29:16-0.16:477:15Waning Gibbous1Tue
2Wed11:581.410:31-0.26:457:16Waning Gibbous2Wed
3Thu12:411.511:44-0.36:447:17Waning Gibbous3Thu
4Fri1:341.66:437:17Third Quarter4Fri
5Sat2:381.612:53-0.46:427:18Third Quarter5Sat
6Sun3:541.61:57-0.46:417:18Third Quarter6Sun
7Mon5:251.52:55-0.36:407:19Waning Crescent7Mon
8Tue7:061.33:47-0.26:397:19Waning Crescent8Tue
9Wed8:541.24:330.06:377:20Waning Crescent9Wed
10Thu10:581.05:050.36:367:21Waning Crescent10Thu
11Fri10:080.74:560.64:410.36:357:21New Moon11Fri
12Sat9:391.16:150.16:347:22New Moon12Sat
13Sun9:571.37:34-0.16:337:22New Moon13Sun
14Mon10:321.68:46-0.26:327:23Waxing Crescent14Mon
15Tue11:121.79:55-0.36:317:23Waxing Crescent15Tue
16Wed11:551.711:02-0.36:307:24Waxing Crescent16Wed
17Thu12:411.76:297:25First Quarter17Thu
18Fri1:301.612:05-0.26:287:25First Quarter18Fri
19Sat2:231.51:02-0.16:277:26First Quarter19Sat
20Sun3:251.31:530.06:267:26First Quarter20Sun
21Mon4:421.22:360.16:257:27First Quarter21Mon
22Tue6:251.03:080.26:247:28Waxing Gibbous22Tue
23Wed8:240.93:250.46:237:28Waxing Gibbous23Wed
24Thu10:210.810:420.83:150.63:340.66:227:29Waxing Gibbous24Thu
25Fri9:260.92:160.74:450.46:217:29Waxing Gibbous25Fri
26Sat9:131.15:400.36:207:30Full Moon26Sat
27Sun9:221.36:310.16:197:31Full Moon27Sun
28Mon9:431.57:210.06:187:31Full Moon28Mon
29Tue10:121.68:15-0.16:177:32Waning Gibbous29Tue
30Wed10:481.79:13-0.26:167:32Waning Gibbous30Wed
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 4:34 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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