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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 2m at 6:08 pm (-0.8 ft)
Next high tide (tomorrow) : 8:31 am (2.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:321.09:230.36:038:00Waning Gibbous1Fri
2Sat7:090.77:070.56:038:00Third Quarter2Sat
3Sun5:070.93:130.26:038:00Third Quarter3Sun
4Mon5:001.13:280.06:048:00Third Quarter4Mon
5Tue5:251.34:04-0.26:048:00Waning Crescent5Tue
6Wed6:031.54:43-0.36:058:00Waning Crescent6Wed
7Thu6:461.65:22-0.46:058:00Waning Crescent7Thu
8Fri7:301.65:59-0.46:067:59Waning Crescent8Fri
9Sat8:121.66:33-0.46:067:59New Moon9Sat
10Sun8:521.67:05-0.36:067:59New Moon10Sun
11Mon9:291.57:33-0.26:077:59New Moon11Mon
12Tue10:031.47:57-0.16:077:59New Moon12Tue
13Wed10:341.38:130.06:087:58Waxing Crescent13Wed
14Thu11:021.28:190.16:097:58Waxing Crescent14Thu
15Fri11:231.08:080.36:097:58Waxing Crescent15Fri
16Sat11:270.87:320.46:107:57Waxing Crescent16Sat
17Sun5:050.76:200.46:107:57First Quarter17Sun
18Mon4:080.94:030.36:117:57First Quarter18Mon
19Tue4:121.13:010.16:117:56First Quarter19Tue
20Wed4:381.33:17-0.16:127:56First Quarter20Wed
21Thu5:181.43:52-0.36:127:55Waxing Gibbous21Thu
22Fri6:071.64:34-0.46:137:55Waxing Gibbous22Fri
23Sat7:011.75:20-0.56:137:54Waxing Gibbous23Sat
24Sun7:571.86:08-0.56:147:54Waxing Gibbous24Sun
25Mon8:541.86:56-0.46:157:53Full Moon25Mon
26Tue9:501.77:41-0.36:157:53Full Moon26Tue
27Wed10:471.58:170.06:167:52Full Moon27Wed
28Thu11:431.38:320.36:167:51Waning Gibbous28Thu
29Fri12:440.97:510.56:177:51Waning Gibbous29Fri
30Sat2:580.78:550.66:177:50Waning Gibbous30Sat
31Sun2:301.012:510.36:187:49Third Quarter31Sun
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 1:19 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 4% 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 (4% 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