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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:13 pm (-0.7 ft)
Next high tide (tomorrow) : in 8h 41m at 6:35 am (1.8 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waning Crescent (19% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:261.110:030.810:420.36:344:59Third Quarter1Mon
2Tue6:270.810:060.56:354:59Third Quarter2Tue
3Wed5:341.12:120.46:354:59Waning Crescent3Wed
4Thu5:371.42:440.06:364:59Waning Crescent4Thu
5Fri6:071.63:30-0.36:375:00Waning Crescent5Fri
6Sat6:501.84:22-0.66:385:00New Moon6Sat
7Sun7:391.95:16-0.76:385:00New Moon7Sun
8Mon8:301.96:11-0.86:395:00New Moon8Mon
9Tue9:211.87:08-0.76:405:00New Moon9Tue
10Wed10:081.68:02-0.66:405:00Waxing Crescent10Wed
11Thu10:501.48:50-0.56:415:01Waxing Crescent11Thu
12Fri11:231.29:29-0.36:425:01Waxing Crescent12Fri
13Sat11:370.99:52-0.16:425:01First Quarter13Sat
14Sun10:280.79:440.16:435:02First Quarter14Sun
15Mon6:240.68:330.36:445:02First Quarter15Mon
16Tue5:080.84:380.36:445:02First Quarter16Tue
17Wed4:580.93:010.16:455:03Waxing Gibbous17Wed
18Thu5:141.13:09-0.26:455:03Waxing Gibbous18Thu
19Fri5:441.23:34-0.46:465:04Waxing Gibbous19Fri
20Sat6:211.34:07-0.56:465:04Waxing Gibbous20Sat
21Sun7:021.44:44-0.66:475:05Waxing Gibbous21Sun
22Mon7:441.45:24-0.76:475:05Full Moon22Mon
23Tue8:271.46:04-0.76:485:06Full Moon23Tue
24Wed9:081.46:44-0.76:485:06Full Moon24Wed
25Thu9:481.37:23-0.76:495:07Waning Gibbous25Thu
26Fri10:271.27:59-0.66:495:07Waning Gibbous26Fri
27Sat11:031.08:30-0.56:495:08Waning Gibbous27Sat
28Sun11:300.78:49-0.36:505:09Waning Gibbous28Sun
29Mon7:240.48:380.06:505:09Third Quarter29Mon
30Tue4:140.56:490.16:505:10Third Quarter30Tue
31Wed3:530.81:48-0.16:505:11Third Quarter31Wed
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 11:54 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 spring phase. Tonight's moon is 19% 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 Waning Crescent (19% 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