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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 5h 38m at 8:33 pm (-0.3 ft)
Next high tide (tomorrow) : 10:48 am (1.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:181.89:330.36:105:12Waxing Crescent1Wed
2Thu10:290.36:115:11First Quarter2Thu
3Fri12:001.711:210.46:125:10First Quarter3Fri
4Sat12:471.612:060.46:125:09First Quarter4Sat
5Sun1:391.512:410.56:135:09First Quarter5Sun
6Mon2:501.41:050.66:145:08Waxing Gibbous6Mon
7Tue5:091.29:111.11:110.86:155:07Waxing Gibbous7Tue
8Wed7:511.18:111.21:571.012:490.96:155:07Waxing Gibbous8Wed
9Thu7:531.33:000.86:165:06Waxing Gibbous9Thu
10Fri7:581.53:540.56:175:06Full Moon10Fri
11Sat8:181.74:470.36:185:05Full Moon11Sat
12Sun8:491.85:430.16:185:04Full Moon12Sun
13Mon9:271.96:430.06:195:04Waning Gibbous13Mon
14Tue10:102.07:46-0.16:205:03Waning Gibbous14Tue
15Wed10:582.08:52-0.16:215:03Waning Gibbous15Wed
16Thu11:471.89:57-0.16:225:03Waning Gibbous16Thu
17Fri10:580.06:225:02Third Quarter17Fri
18Sat12:381.711:500.16:235:02Third Quarter18Sat
19Sun1:281.412:280.36:245:01Third Quarter19Sun
20Mon1:581.19:231.012:430.56:255:01Waning Crescent20Mon
21Tue7:160.97:541.02:400.812:040.76:265:01Waning Crescent21Tue
22Wed7:241.23:210.56:265:01Waning Crescent22Wed
23Thu7:261.44:050.36:275:00Waning Crescent23Thu
24Fri7:441.54:460.16:285:00New Moon24Fri
25Sat8:091.65:260.06:295:00New Moon25Sat
26Sun8:381.66:05-0.16:305:00New Moon26Sun
27Mon9:081.66:44-0.16:305:00New Moon27Mon
28Tue9:401.67:24-0.16:315:00Waxing Crescent28Tue
29Wed10:141.68:07-0.16:324:59Waxing Crescent29Wed
30Thu10:491.58:52-0.16:334:59Waxing Crescent30Thu
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 3:40 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 97% 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 (97% 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