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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 18m at 7:21 pm (0.5 ft)
Next high tide (tomorrow) : 3:27 am (0.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:141.68:33-0.36:028:00Full Moon1Wed
2Thu10:481.58:59-0.26:038:00Waning Gibbous2Thu
3Fri11:191.49:17-0.16:038:00Waning Gibbous3Fri
4Sat11:471.29:220.16:048:00Waning Gibbous4Sat
5Sun12:031.09:060.36:048:00Waning Gibbous5Sun
6Mon9:070.77:560.46:048:00Third Quarter6Mon
7Tue5:210.93:440.36:058:00Third Quarter7Tue
8Wed4:541.13:020.06:057:59Third Quarter8Wed
9Thu5:091.43:34-0.36:067:59Waning Crescent9Thu
10Fri5:461.64:21-0.66:067:59Waning Crescent10Fri
11Sat6:351.85:13-0.76:077:59Waning Crescent11Sat
12Sun7:322.06:08-0.86:077:59Waning Crescent12Sun
13Mon8:312.07:03-0.86:087:58New Moon13Mon
14Tue9:292.07:56-0.76:087:58New Moon14Tue
15Wed10:251.88:44-0.56:097:58New Moon15Wed
16Thu11:161.69:21-0.26:097:57Waxing Crescent16Thu
17Fri12:001.39:330.16:107:57Waxing Crescent17Fri
18Sat12:310.98:470.46:107:57Waxing Crescent18Sat
19Sun5:500.76:070.56:117:56First Quarter19Sun
20Mon3:540.92:460.36:127:56First Quarter20Mon
21Tue3:551.12:520.16:127:55First Quarter21Tue
22Wed4:221.33:22-0.16:137:55First Quarter22Wed
23Thu5:001.43:58-0.26:137:54Waxing Gibbous23Thu
24Fri5:441.54:36-0.36:147:54Waxing Gibbous24Fri
25Sat6:331.65:16-0.36:147:53Waxing Gibbous25Sat
26Sun7:231.65:56-0.36:157:53Waxing Gibbous26Sun
27Mon8:111.66:34-0.36:167:52Full Moon27Mon
28Tue8:551.67:08-0.26:167:51Full Moon28Tue
29Wed9:351.67:35-0.26:177:51Full Moon29Wed
30Thu10:111.57:550.06:177:50Full Moon30Thu
31Fri10:451.48:040.16:187:49Waning Gibbous31Fri
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 11:24 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 84% 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 Gibbous (84% 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