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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 7h 33m at 7:03 pm (-0.8 ft)
Next high tide (tomorrow) : 9:29 am (2.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:291.48:28-0.16:038:00Waxing Crescent1Sun
2Mon11:001.38:440.06:038:00Waxing Crescent2Mon
3Tue11:231.18:490.16:048:00Waxing Crescent3Tue
4Wed11:331.08:330.36:048:00Waxing Crescent4Wed
5Thu10:330.87:460.46:058:00First Quarter5Thu
6Fri5:480.86:080.46:058:00First Quarter6Fri
7Sat5:050.94:130.36:057:59First Quarter7Sat
8Sun5:101.13:510.16:067:59First Quarter8Sun
9Mon5:341.24:08-0.16:067:59Waxing Gibbous9Mon
10Tue6:101.44:36-0.26:077:59Waxing Gibbous10Tue
11Wed6:511.55:11-0.36:077:59Waxing Gibbous11Wed
12Thu7:351.65:48-0.46:087:58Waxing Gibbous12Thu
13Fri8:221.76:28-0.46:087:58Full Moon13Fri
14Sat9:081.77:08-0.46:097:58Full Moon14Sat
15Sun9:561.67:46-0.36:097:57Full Moon15Sun
16Mon10:431.58:19-0.16:107:57Full Moon16Mon
17Tue11:301.38:400.16:117:57Waning Gibbous17Tue
18Wed12:141.08:300.36:117:56Waning Gibbous18Wed
19Thu12:330.77:050.56:127:56Waning Gibbous19Thu
20Fri3:530.92:020.46:127:55Third Quarter20Fri
21Sat3:521.12:240.16:137:55Third Quarter21Sat
22Sun4:231.33:08-0.16:137:54Third Quarter22Sun
23Mon5:091.53:55-0.36:147:54Waning Crescent23Mon
24Tue6:011.64:41-0.36:147:53Waning Crescent24Tue
25Wed6:541.65:24-0.36:157:53Waning Crescent25Wed
26Thu7:451.66:03-0.36:167:52Waning Crescent26Thu
27Fri8:321.66:37-0.26:167:52New Moon27Fri
28Sat9:151.57:04-0.16:177:51New Moon28Sat
29Sun9:521.47:240.16:177:50New Moon29Sun
30Mon10:271.37:340.26:187:50New Moon30Mon
31Tue10:581.17:310.36:187:49Waxing Crescent31Tue
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 2:16 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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