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 : 4:13 pm (0.3 ft)
Next high tide : in 5h 17m at 6:19 am (0.9 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 - May 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:421.77:55-0.36:157:33New Moon1Wed
2Thu10:181.88:50-0.36:147:34Waxing Crescent2Thu
3Fri10:571.89:44-0.36:147:34Waxing Crescent3Fri
4Sat11:381.810:40-0.26:137:35Waxing Crescent4Sat
5Sun12:201.711:34-0.16:127:36Waxing Crescent5Sun
6Mon1:051.66:117:36First Quarter6Mon
7Tue1:511.412:250.06:117:37First Quarter7Tue
8Wed2:371.31:080.16:107:38First Quarter8Wed
9Thu3:251.11:410.26:097:38First Quarter9Thu
10Fri5:050.91:560.46:087:39Waxing Gibbous10Fri
11Sat9:400.91:390.63:520.76:087:39Waxing Gibbous11Sat
12Sun8:361.04:350.46:077:40Waxing Gibbous12Sun
13Mon8:211.25:160.26:077:41Waxing Gibbous13Mon
14Tue8:301.45:580.06:067:41Full Moon14Tue
15Wed8:521.66:43-0.26:057:42Full Moon15Wed
16Thu9:231.87:33-0.36:057:42Full Moon16Thu
17Fri10:011.98:28-0.46:047:43Full Moon17Fri
18Sat10:451.99:27-0.56:047:44Waning Gibbous18Sat
19Sun11:321.910:27-0.46:037:44Waning Gibbous19Sun
20Mon12:231.911:26-0.46:037:45Waning Gibbous20Mon
21Tue1:151.76:027:45Third Quarter21Tue
22Wed2:061.512:18-0.26:027:46Third Quarter22Wed
23Thu2:521.212:590.06:017:47Third Quarter23Thu
24Fri11:170.91:190.36:017:47Waning Crescent24Fri
25Sat8:410.912:430.64:090.46:017:48Waning Crescent25Sat
26Sun7:511.24:530.16:007:48Waning Crescent26Sun
27Mon7:511.45:38-0.16:007:49Waning Crescent27Mon
28Tue8:131.76:23-0.36:007:49New Moon28Tue
29Wed8:451.87:07-0.46:007:50New Moon29Wed
30Thu9:211.97:51-0.45:597:51New Moon30Thu
31Fri9:581.88:36-0.45:597:51New Moon31Fri
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 11:16 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