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 50m 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 - Apr 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:311.311:070.06:477:15Waning Gibbous1Sat
2Sun1:161.36:457:16Third Quarter2Sun
3Mon2:091.312:11-0.16:447:17Third Quarter3Mon
4Tue3:131.31:08-0.16:437:17Third Quarter4Tue
5Wed4:361.21:590.06:427:18Third Quarter5Wed
6Thu6:231.12:440.06:417:18Waning Crescent6Thu
7Fri8:231.03:240.26:407:19Waning Crescent7Fri
8Sat10:480.610:310.93:500.42:410.56:397:19Waning Crescent8Sat
9Sun9:460.83:490.64:210.36:387:20New Moon9Sun
10Mon9:311.05:400.16:367:21New Moon10Mon
11Tue9:461.26:53-0.16:357:21New Moon11Tue
12Wed10:191.48:06-0.26:347:22Waxing Crescent12Wed
13Thu11:001.69:18-0.26:337:22Waxing Crescent13Thu
14Fri11:451.610:29-0.26:327:23Waxing Crescent14Fri
15Sat12:321.611:36-0.16:317:23Waxing Crescent15Sat
16Sun1:201.56:307:24First Quarter16Sun
17Mon2:081.312:340.06:297:25First Quarter17Mon
18Tue2:571.21:220.16:287:25First Quarter18Tue
19Wed3:541.01:570.36:277:26First Quarter19Wed
20Thu12:210.82:140.42:360.86:267:26Waxing Gibbous20Thu
21Fri10:060.89:490.72:090.63:480.76:257:27Waxing Gibbous21Fri
22Sat9:160.91:260.74:310.56:247:28Waxing Gibbous22Sat
23Sun9:001.05:100.46:237:28Waxing Gibbous23Sun
24Mon9:041.25:490.36:227:29Full Moon24Mon
25Tue9:191.36:280.26:217:29Full Moon25Tue
26Wed9:421.47:090.16:207:30Full Moon26Wed
27Thu10:091.57:520.16:197:31Full Moon27Thu
28Fri10:411.58:390.06:187:31Waning Gibbous28Fri
29Sat11:161.59:280.06:177:32Waning Gibbous29Sat
30Sun11:541.610:200.06:167:32Waning Gibbous30Sun
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