28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H -°
L 82°
W
4mph
High tide
8:50 am

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

TIDE TIMES for Tuesday, August 25, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 6:27 pm (0.2 ft)
Next high tide (tomorrow) : in 10h 37m at 8:50 am (1.7 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Gibbous (94% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:351.812:560.56:506:44First Quarter1Wed
2Thu2:331.81:460.56:506:43First Quarter2Thu
3Fri3:421.82:280.66:516:42First Quarter3Fri
4Sat5:031.73:030.66:516:41Waxing Gibbous4Sat
5Sun6:341.63:310.86:526:40Waxing Gibbous5Sun
6Mon8:101.510:401.13:460.96:536:39Waxing Gibbous6Mon
7Tue9:551.49:341.31:551.13:381.16:536:37Waxing Gibbous7Tue
8Wed12:201.33:460.92:311.36:546:36Full Moon8Wed
9Thu9:341.75:090.76:546:35Full Moon9Thu
10Fri10:051.96:260.56:556:34Full Moon10Fri
11Sat10:462.17:430.46:556:33Waning Gibbous11Sat
12Sun11:352.29:030.36:566:32Waning Gibbous12Sun
13Mon10:220.26:576:31Waning Gibbous13Mon
14Tue12:282.211:370.26:576:30Third Quarter14Tue
15Wed1:262.112:440.36:586:29Third Quarter15Wed
16Thu2:291.91:410.46:586:28Third Quarter16Thu
17Fri3:441.72:250.66:596:26Third Quarter17Fri
18Sat5:281.52:520.87:006:25Waning Crescent18Sat
19Sun7:491.39:541.22:491.07:006:24Waning Crescent19Sun
20Mon10:241.28:591.43:131.01:501.27:016:23Waning Crescent20Mon
21Tue8:481.54:220.97:026:22Waning Crescent21Tue
22Wed8:591.65:130.77:026:21New Moon22Wed
23Thu9:181.75:570.67:036:21New Moon23Thu
24Fri9:431.86:390.57:046:20New Moon24Fri
25Sat10:121.97:230.57:046:19New Moon25Sat
26Sun9:441.97:100.46:055:18Waxing Crescent26Sun
27Mon10:201.98:010.46:065:17Waxing Crescent27Mon
28Tue11:001.98:560.46:065:16Waxing Crescent28Tue
29Wed11:411.89:510.46:075:15Waxing Crescent29Wed
30Thu10:400.46:085:14First Quarter30Thu
31Fri12:261.711:220.56:085:13First Quarter31Fri
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 94% 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 (94% 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