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 (tomorrow) : 8:33 pm (-0.3 ft)
Next high tide (tomorrow) : in 13h 09m at 10:14 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 - Nov 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:461.55:040.77:106:12New Moon1Wed
2Thu9:031.65:400.67:116:11New Moon2Thu
3Fri9:261.76:180.57:116:10New Moon3Fri
4Sat9:531.86:580.47:126:10New Moon4Sat
5Sun9:241.86:400.36:135:09Waxing Crescent5Sun
6Mon9:581.87:250.36:135:08Waxing Crescent6Mon
7Tue10:341.88:130.36:145:08Waxing Crescent7Tue
8Wed11:121.79:010.36:155:07Waxing Crescent8Wed
9Thu11:521.69:490.36:165:06First Quarter9Thu
10Fri10:330.46:175:06First Quarter10Fri
11Sat12:341.511:120.56:175:05First Quarter11Sat
12Sun1:171.39:301.111:390.66:185:05First Quarter12Sun
13Mon4:111.07:371.11:311.011:42 AM0.86:195:04Waxing Gibbous13Mon
14Tue7:011.22:110.86:205:04Waxing Gibbous14Tue
15Wed7:001.53:010.56:215:03Waxing Gibbous15Wed
16Thu7:211.73:540.26:215:03Full Moon16Thu
17Fri7:551.84:500.06:225:02Full Moon17Fri
18Sat8:361.95:47-0.16:235:02Full Moon18Sat
19Sun9:211.96:45-0.26:245:02Full Moon19Sun
20Mon10:051.97:44-0.26:255:01Waning Gibbous20Mon
21Tue10:481.78:40-0.16:255:01Waning Gibbous21Tue
22Wed11:251.59:320.06:265:01Waning Gibbous22Wed
23Thu11:491.310:130.26:275:00Third Quarter23Thu
24Fri11:311.110:380.36:285:00Third Quarter24Fri
25Sat8:580.910:350.56:295:00Third Quarter25Sat
26Sun7:131.09:380.66:295:00Third Quarter26Sun
27Mon6:361.13:590.66:305:00Waning Crescent27Mon
28Tue6:321.23:350.46:314:59Waning Crescent28Tue
29Wed6:441.33:520.26:324:59Waning Crescent29Wed
30Thu7:051.44:180.16:324:59Waning Crescent30Thu
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 3:23 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