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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 4:09 pm (0.0 ft)
Next high tide (tomorrow) : in 7h 31m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:13-0.17:106:12Waning Gibbous1Sat
2Sun12:002.311:552.110:23-0.16:115:11Waning Gibbous2Sun
3Mon11:260.16:115:10Third Quarter3Mon
4Tue12:501.912:190.26:125:09Third Quarter4Tue
5Wed1:471.712:580.46:135:09Third Quarter5Wed
6Thu2:491.41:200.66:145:08Waning Crescent6Thu
7Fri4:361.29:161.11:130.86:145:07Waning Crescent7Fri
8Sat8:031.07:521.22:241.012:110.96:155:07Waning Crescent8Sat
9Sun7:251.43:210.76:165:06Waning Crescent9Sun
10Mon7:251.54:030.56:175:06Waning Crescent10Mon
11Tue7:391.74:410.46:175:05New Moon11Tue
12Wed8:031.85:200.26:185:04New Moon12Wed
13Thu8:331.96:010.16:195:04New Moon13Thu
14Fri9:071.96:450.06:205:03New Moon14Fri
15Sat9:461.97:350.06:215:03Waxing Crescent15Sat
16Sun10:291.98:29-0.16:215:03Waxing Crescent16Sun
17Mon11:141.99:24-0.16:225:02Waxing Crescent17Mon
18Tue10:16-0.16:235:02Waxing Crescent18Tue
19Wed12:011.811:050.06:245:01First Quarter19Wed
20Thu12:521.611:460.16:255:01First Quarter20Thu
21Fri1:491.412:160.36:255:01First Quarter21Fri
22Sat3:581.07:560.912:170.66:265:01Waxing Gibbous22Sat
23Sun6:431.12:000.66:275:00Waxing Gibbous23Sun
24Mon6:321.43:020.26:285:00Waxing Gibbous24Mon
25Tue6:541.73:59-0.16:295:00Full Moon25Tue
26Wed7:331.94:56-0.46:295:00Full Moon26Wed
27Thu8:192.15:55-0.66:305:00Full Moon27Thu
28Fri9:082.16:55-0.66:314:59Full Moon28Fri
29Sat9:582.07:57-0.66:324:59Waning Gibbous29Sat
30Sun10:471.88:57-0.56:334:59Waning Gibbous30Sun
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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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