28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

86°
H -°
L 82°
SSW
5mph
High tide
9:36 am

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

TIDE TIMES for Thursday, August 27, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 6:43 pm (0.4 ft)
Next high tide : in 9h 19m at 9:36 am (1.6 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:33 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 1917

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:111.85:20-0.55:186:49Full Moon1Wed
2Thu8:091.86:06-0.35:186:48Full Moon2Thu
3Fri9:071.76:47-0.15:196:48Full Moon3Fri
4Sat10:071.57:160.25:196:47Full Moon4Sat
5Sun11:121.27:090.55:206:46Waning Gibbous5Sun
6Mon1:580.612:460.84:400.65:200.75:216:45Waning Gibbous6Mon
7Tue12:430.99:290.45:216:45Waning Gibbous7Tue
8Wed12:581.211:430.25:226:44Third Quarter8Wed
9Thu1:401.412:520.05:226:43Third Quarter9Thu
10Fri2:331.61:49-0.25:236:42Third Quarter10Fri
11Sat3:331.72:41-0.25:236:41Waning Crescent11Sat
12Sun4:351.73:28-0.25:246:40Waning Crescent12Sun
13Mon5:361.74:10-0.15:256:39Waning Crescent13Mon
14Tue6:331.64:460.05:256:38Waning Crescent14Tue
15Wed7:231.65:170.15:266:38New Moon15Wed
16Thu8:071.55:400.25:266:37New Moon16Thu
17Fri8:471.45:530.35:276:36New Moon17Fri
18Sat9:251.35:520.55:276:35New Moon18Sat
19Sun10:031.15:280.65:286:34New Moon19Sun
20Mon12:350.811:491.03:030.84:380.75:286:33Waxing Crescent20Mon
21Tue11:420.811:511.15:510.73:080.85:296:32Waxing Crescent21Tue
22Wed8:480.65:306:31Waxing Crescent22Wed
23Thu12:141.310:560.55:306:30Waxing Crescent23Thu
24Fri12:501.511:570.35:316:28First Quarter24Fri
25Sat1:371.612:490.15:316:27First Quarter25Sat
26Sun2:361.71:390.05:326:26First Quarter26Sun
27Mon3:421.82:29-0.15:326:25Waxing Gibbous27Mon
28Tue4:531.93:19-0.15:336:24Waxing Gibbous28Tue
29Wed6:041.94:07-0.15:336:23Waxing Gibbous29Wed
30Thu7:161.94:530.15:346:22Waxing Gibbous30Thu
31Fri8:281.75:330.45:346:21Full Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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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 100% 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 Full Moon (100% 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