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

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:56 pm (-0.7 ft)
Next high tide : in 9h 36m at 9:29 am (2.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:311.58:240.06:187:49New Moon1Sat
2Sun11:111.48:450.26:197:48Waxing Crescent2Sun
3Mon11:431.28:460.36:197:47Waxing Crescent3Mon
4Tue12:021.08:150.56:207:47Waxing Crescent4Tue
5Wed10:540.86:550.66:207:46Waxing Crescent5Wed
6Thu4:160.94:090.56:217:45First Quarter6Thu
7Fri4:071.02:580.46:227:44First Quarter7Fri
8Sat4:271.23:110.26:227:43First Quarter8Sat
9Sun5:021.33:410.16:237:43First Quarter9Sun
10Mon5:451.44:160.06:237:42Waxing Gibbous10Mon
11Tue6:321.54:530.06:247:41Waxing Gibbous11Tue
12Wed7:211.65:30-0.16:247:40Waxing Gibbous12Wed
13Thu8:081.66:06-0.16:257:39Waxing Gibbous13Thu
14Fri8:541.66:400.06:267:38Full Moon14Fri
15Sat9:381.67:120.16:267:37Full Moon15Sat
16Sun10:231.57:400.26:277:36Full Moon16Sun
17Mon11:091.48:000.46:277:35Waning Gibbous17Mon
18Tue11:581.28:010.66:287:34Waning Gibbous18Tue
19Wed12:591.07:150.76:287:33Waning Gibbous19Wed
20Thu2:441.010:100.76:297:32Waning Gibbous20Thu
21Fri2:401.212:450.46:297:31Third Quarter21Fri
22Sat3:101.41:500.26:307:30Third Quarter22Sat
23Sun3:581.62:460.06:307:29Third Quarter23Sun
24Mon4:571.73:39-0.16:317:28Waning Crescent24Mon
25Tue6:011.84:31-0.16:317:27Waning Crescent25Tue
26Wed7:061.85:19-0.16:327:26Waning Crescent26Wed
27Thu8:071.86:030.16:337:25Waning Crescent27Thu
28Fri9:041.76:400.26:337:24New Moon28Fri
29Sat9:551.67:080.46:347:23New Moon29Sat
30Sun10:431.47:200.66:347:21New Moon30Sun
31Mon11:291.37:060.86:357:20Waxing Crescent31Mon
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 2:42 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 1% 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 New Moon (1% 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