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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:32 pm (0.3 ft)
Next high tide : in 9h 08m at 12:51 pm (1.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:031.67:02-0.46:028:00Full Moon1Wed
2Thu9:431.67:42-0.46:038:00Full Moon2Thu
3Fri10:251.68:21-0.36:038:00Full Moon3Fri
4Sat11:061.58:57-0.26:038:00Waning Gibbous4Sat
5Sun11:451.39:250.06:048:00Waning Gibbous5Sun
6Mon12:121.09:340.26:048:00Waning Gibbous6Mon
7Tue10:450.88:550.46:058:00Third Quarter7Tue
8Wed6:240.85:090.46:057:59Third Quarter8Wed
9Thu5:481.03:360.26:067:59Third Quarter9Thu
10Fri5:561.24:02-0.16:067:59Waning Crescent10Fri
11Sat6:251.44:40-0.26:077:59Waning Crescent11Sat
12Sun7:031.55:20-0.36:077:59Waning Crescent12Sun
13Mon7:451.55:59-0.36:087:58Waning Crescent13Mon
14Tue8:271.66:36-0.36:087:58New Moon14Tue
15Wed9:071.57:10-0.26:097:58New Moon15Wed
16Thu9:441.57:38-0.26:097:57New Moon16Thu
17Fri10:171.48:020.06:107:57New Moon17Fri
18Sat10:481.38:180.16:107:57Waxing Crescent18Sat
19Sun11:131.18:260.26:117:56Waxing Crescent19Sun
20Mon11:301.08:180.36:117:56Waxing Crescent20Mon
21Tue11:130.87:460.46:127:55Waxing Crescent21Tue
22Wed5:510.86:370.46:127:55First Quarter22Wed
23Thu4:570.94:400.46:137:54First Quarter23Thu
24Fri4:591.03:450.26:147:54First Quarter24Fri
25Sat5:221.23:520.16:147:53First Quarter25Sat
26Sun5:571.34:160.06:157:53Waxing Gibbous26Sun
27Mon6:381.44:48-0.26:157:52Waxing Gibbous27Mon
28Tue7:231.55:25-0.26:167:52Waxing Gibbous28Tue
29Wed8:101.66:03-0.36:167:51Waxing Gibbous29Wed
30Thu8:581.66:43-0.26:177:50Full Moon30Thu
31Fri9:471.67:22-0.16:187:50Full Moon31Fri
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 5:41 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 transitional phase. Tonight's moon is 38% 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 shifting between spring and neap.

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 First Quarter (38% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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