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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:56 pm (-0.3 ft)
Next high tide (tomorrow) : in 10h 00m at 7:23 am (1.6 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:031.57:570.06:197:48Full Moon1Thu
2Fri10:371.48:120.16:207:47Full Moon2Fri
3Sat11:071.38:110.36:207:47Waning Gibbous3Sat
4Sun11:361.17:470.46:217:46Waning Gibbous4Sun
5Mon11:590.96:490.66:217:45Waning Gibbous5Mon
6Tue3:030.94:230.66:227:44Waning Gibbous6Tue
7Wed2:481.11:270.46:227:43Third Quarter7Wed
8Thu3:071.31:560.16:237:43Third Quarter8Thu
9Fri3:461.52:41-0.16:247:42Third Quarter9Fri
10Sat4:391.73:33-0.36:247:41Waning Crescent10Sat
11Sun5:421.94:27-0.56:257:40Waning Crescent11Sun
12Mon6:492.05:22-0.56:257:39Waning Crescent12Mon
13Tue7:572.16:17-0.56:267:38Waning Crescent13Tue
14Wed9:022.07:09-0.36:267:37New Moon14Wed
15Thu10:051.87:560.06:277:36New Moon15Thu
16Fri11:081.68:300.36:277:35New Moon16Fri
17Sat12:171.38:220.66:287:34Waxing Crescent17Sat
18Sun2:050.72:050.95:190.76:000.96:297:33Waxing Crescent18Sun
19Mon12:571.09:370.56:297:32Waxing Crescent19Mon
20Tue1:181.312:030.36:307:31First Quarter20Tue
21Wed1:581.51:170.16:307:30First Quarter21Wed
22Thu2:471.72:140.06:317:29First Quarter22Thu
23Fri3:431.73:050.06:317:28First Quarter23Fri
24Sat4:451.83:530.06:327:27Waxing Gibbous24Sat
25Sun5:511.84:380.06:327:26Waxing Gibbous25Sun
26Mon6:551.85:190.16:337:25Waxing Gibbous26Mon
27Tue7:521.75:560.16:337:24Waxing Gibbous27Tue
28Wed8:421.76:260.36:347:23Full Moon28Wed
29Thu9:271.66:460.46:347:21Full Moon29Thu
30Fri10:081.56:510.66:357:20Full Moon30Fri
31Sat10:511.36:320.76:357:19Full Moon31Sat
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 12:39 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 86% 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 Waxing Gibbous (86% 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