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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 6:01 pm (-0.5 ft)
Next high tide : in 1h 49m at 7:36 am (2.0 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:531.01:15-0.47:226:57First Quarter1Wed
2Thu3:511.02:16-0.57:216:58First Quarter2Thu
3Fri4:551.03:07-0.57:206:58First Quarter3Fri
4Sat6:031.03:52-0.57:196:59Waxing Gibbous4Sat
5Sun7:091.04:33-0.47:187:00Waxing Gibbous5Sun
6Mon8:090.95:09-0.47:177:00Waxing Gibbous6Mon
7Tue9:020.95:40-0.37:167:01Waxing Gibbous7Tue
8Wed9:500.86:05-0.17:157:01Full Moon8Wed
9Thu10:360.76:210.07:137:02Full Moon9Thu
10Fri11:240.66:240.17:127:03Full Moon10Fri
11Sat12:230.46:070.24:450.37:117:03Full Moon11Sat
12Sun12:210.512:060.55:260.36:300.27:107:04Waning Gibbous12Sun
13Mon12:140.78:170.17:097:05Waning Gibbous13Mon
14Tue12:360.810:070.07:087:05Waning Gibbous14Tue
15Wed1:091.011:40-0.17:077:06Waning Gibbous15Wed
16Thu1:531.17:057:06Third Quarter16Thu
17Fri2:481.212:52-0.37:047:07Third Quarter17Fri
18Sat3:561.31:53-0.47:037:07Third Quarter18Sat
19Sun5:161.32:51-0.47:027:08Waning Crescent19Sun
20Mon6:421.33:45-0.47:017:09Waning Crescent20Mon
21Tue8:071.24:36-0.47:007:09Waning Crescent21Tue
22Wed9:311.15:24-0.26:587:10Waning Crescent22Wed
23Thu11:000.96:040.06:577:10New Moon23Thu
24Fri11:570.46:250.34:090.36:567:11New Moon24Fri
25Sat12:490.810:59 AM0.75:480.66:110.26:557:11New Moon25Sat
26Sun11:020.97:550.06:547:12Waxing Crescent26Sun
27Mon11:321.19:31-0.16:537:13Waxing Crescent27Mon
28Tue12:121.310:58-0.26:517:13Waxing Crescent28Tue
29Wed12:571.36:507:14First Quarter29Wed
30Thu1:461.312:11-0.26:497:14First Quarter30Thu
31Fri2:391.31:14-0.26:487:15First Quarter31Fri
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 12:48 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 6% 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 (6% 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