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 11h 22m 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 - Dec 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:481.76:10-0.36:334:59Full Moon1Sat
2Sun9:291.87:01-0.46:344:59Waning Gibbous2Sun
3Mon10:131.77:56-0.46:354:59Waning Gibbous3Mon
4Tue10:581.78:52-0.46:364:59Waning Gibbous4Tue
5Wed11:441.59:48-0.46:365:00Waning Gibbous5Wed
6Thu10:38-0.26:375:00Third Quarter6Thu
7Fri12:271.311:180.06:385:00Third Quarter7Fri
8Sat12:491.09:150.711:360.26:395:00Third Quarter8Sat
9Sun7:120.810:540.56:395:00Waning Crescent9Sun
10Mon6:321.02:570.36:405:00Waning Crescent10Mon
11Tue6:351.23:33-0.16:415:01Waning Crescent11Tue
12Wed6:591.44:16-0.36:415:01Waning Crescent12Wed
13Thu7:321.55:00-0.56:425:01New Moon13Thu
14Fri8:091.55:44-0.66:435:01New Moon14Fri
15Sat8:461.56:27-0.66:435:02New Moon15Sat
16Sun9:241.57:09-0.66:445:02New Moon16Sun
17Mon10:001.47:51-0.56:445:03Waxing Crescent17Mon
18Tue10:341.28:31-0.46:455:03Waxing Crescent18Tue
19Wed11:061.19:09-0.36:465:03Waxing Crescent19Wed
20Thu11:290.99:40-0.26:465:04Waxing Crescent20Thu
21Fri11:300.79:59-0.16:475:04First Quarter21Fri
22Sat9:320.59:560.16:475:05First Quarter22Sat
23Sun6:520.59:030.26:485:05First Quarter23Sun
24Mon5:590.74:450.26:485:06First Quarter24Mon
25Tue5:530.83:190.06:485:07Waxing Gibbous25Tue
26Wed6:101.03:31-0.36:495:07Waxing Gibbous26Wed
27Thu6:391.24:00-0.56:495:08Waxing Gibbous27Thu
28Fri7:161.34:37-0.66:505:08Full Moon28Fri
29Sat7:581.45:20-0.86:505:09Full Moon29Sat
30Sun8:431.46:07-0.86:505:10Full Moon30Sun
31Mon9:291.56:57-0.96:505:10Full Moon31Mon
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 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