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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 2h 22m at 4:09 pm (0.0 ft)
Next high tide (tomorrow) : 6:03 am (1.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:321.84:110.56:105:12Full Moon1Sun
2Mon8:031.95:010.36:115:11Full Moon2Mon
3Tue8:412.15:550.16:115:10Full Moon3Tue
4Wed9:252.26:550.06:125:09Waning Gibbous4Wed
5Thu10:132.27:59-0.16:135:09Waning Gibbous5Thu
6Fri11:052.19:05-0.16:145:08Waning Gibbous6Fri
7Sat11:592.010:09-0.16:145:07Waning Gibbous7Sat
8Sun11:070.16:155:07Third Quarter8Sun
9Mon12:551.811:560.36:165:06Third Quarter9Mon
10Tue1:571.512:280.56:175:06Third Quarter10Tue
11Wed4:081.17:551.112:220.86:185:05Waning Crescent11Wed
12Thu6:421.32:130.86:185:05Waning Crescent12Thu
13Fri6:331.53:110.56:195:04Waning Crescent13Fri
14Sat6:531.74:010.26:205:04Waning Crescent14Sat
15Sun7:241.94:470.06:215:03New Moon15Sun
16Mon7:591.95:32-0.16:225:03New Moon16Mon
17Tue8:361.96:16-0.16:225:02New Moon17Tue
18Wed9:141.97:01-0.16:235:02Waxing Crescent18Wed
19Thu9:521.87:47-0.16:245:01Waxing Crescent19Thu
20Fri10:311.78:340.06:255:01Waxing Crescent20Fri
21Sat11:081.69:200.06:265:01Waxing Crescent21Sat
22Sun11:431.510:010.16:265:01Waxing Crescent22Sun
23Mon10:330.26:275:00First Quarter23Mon
24Tue12:081.311:581.010:480.46:285:00First Quarter24Tue
25Wed8:180.910:320.56:295:00First Quarter25Wed
26Thu6:231.08:580.76:305:00First Quarter26Thu
27Fri5:541.22:560.56:305:00Waxing Gibbous27Fri
28Sat6:011.33:080.26:315:00Waxing Gibbous28Sat
29Sun6:261.53:400.06:324:59Waxing Gibbous29Sun
30Mon7:011.74:21-0.26:334:59Full Moon30Mon
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 11:06 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 transitional phase. Tonight's moon is 68% 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 shifting between spring and neap.

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 First Quarter (68% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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