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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:09 pm (0.0 ft)
Next high tide : in 2h 54m at 5:52 am (1.1 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 - Mar 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:030.911:04-0.36:225:57Waning Gibbous1Sun
2Mon12:421.06:215:58Third Quarter2Mon
3Tue1:321.112:09-0.46:205:58Third Quarter3Tue
4Wed2:341.11:07-0.56:195:59Third Quarter4Wed
5Thu3:461.22:00-0.66:185:59Third Quarter5Thu
6Fri5:011.22:49-0.66:176:00Waning Crescent6Fri
7Sat6:111.23:34-0.66:166:01Waning Crescent7Sat
8Sun8:171.25:15-0.57:147:01Waning Crescent8Sun
9Mon9:231.15:52-0.47:137:02Waning Crescent9Mon
10Tue10:360.96:23-0.27:127:03New Moon10Tue
11Wed6:400.17:117:03New Moon11Wed
12Thu12:080.711:16 AM0.56:130.45:470.17:107:04New Moon12Thu
13Fri11:080.87:53-0.17:097:04Waxing Crescent13Fri
14Sat11:361.19:45-0.47:087:05Waxing Crescent14Sat
15Sun12:201.311:20-0.57:077:06Waxing Crescent15Sun
16Mon1:141.57:057:06First Quarter16Mon
17Tue2:151.512:42-0.67:047:07First Quarter17Tue
18Wed3:261.51:54-0.77:037:07First Quarter18Wed
19Thu4:471.42:57-0.67:027:08First Quarter19Thu
20Fri6:141.33:52-0.57:017:09Waxing Gibbous20Fri
21Sat7:361.14:38-0.37:007:09Waxing Gibbous21Sat
22Sun8:501.05:12-0.16:587:10Waxing Gibbous22Sun
23Mon10:010.85:290.16:577:10Full Moon23Mon
24Tue11:480.511:230.75:190.33:310.46:567:11Full Moon24Tue
25Wed10:460.64:300.55:170.36:557:11Full Moon25Wed
26Thu10:330.86:320.26:547:12Full Moon26Thu
27Fri10:411.07:370.06:537:13Waning Gibbous27Fri
28Sat11:001.28:41-0.16:517:13Waning Gibbous28Sat
29Sun11:271.39:47-0.16:507:14Waning Gibbous29Sun
30Mon12:031.410:58-0.26:497:14Waning Gibbous30Mon
31Tue12:481.46:487:15Waning Gibbous31Tue
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 11:00 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 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