Tides Today & Tomorrow in Shell Island, Atchafalaya Bay, LA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Shell Island, Atchafalaya Bay, LA.
Next low tide : 9:27 am (1.6 ft)
Next high tide : in 2h 13m at 6:59 am (1.7 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:14 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8764165
Common Questions About Tides

Shell Island, Atchafalaya Bay, LA Tides - Sep 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:241.71:271.77:521.57:490.16:437:27Waning Crescent1Mon
2Tue4:591.72:521.78:251.48:410.26:437:25Waning Crescent2Tue
3Wed5:311.74:071.79:011.29:270.46:447:24New Moon3Wed
4Thu6:011.65:151.79:411.110:090.56:447:23New Moon4Thu
5Fri6:291.66:181.710:240.910:480.86:457:22New Moon5Fri
6Sat6:551.67:211.611:100.811:241.06:457:21Waxing Crescent6Sat
7Sun7:171.68:251.611:580.711:591.26:467:19Waxing Crescent7Sun
8Mon7:331.59:371.612:490.66:467:18Waxing Crescent8Mon
9Tue7:361.511:031.612:341.41:420.66:477:17Waxing Crescent9Tue
10Wed7:211.61:081.52:360.56:477:16First Quarter10Wed
11Thu6:591.63:300.56:487:15First Quarter11Thu
12Fri2:251.74:250.56:487:13First Quarter12Fri
13Sat3:221.75:210.56:497:12First Quarter13Sat
14Sun3:491.76:150.56:497:11Waxing Gibbous14Sun
15Mon4:111.77:040.56:507:10Waxing Gibbous15Mon
16Tue4:321.71:261.68:301.57:480.66:507:08Waxing Gibbous16Tue
17Wed4:511.72:541.68:441.48:270.66:517:07Waxing Gibbous17Wed
18Thu5:101.74:041.69:041.39:030.76:517:06Full Moon18Thu
19Fri5:291.75:081.79:281.19:380.96:527:05Full Moon19Fri
20Sat5:471.76:081.89:580.910:141.06:527:04Full Moon20Sat
21Sun6:041.77:091.810:330.810:521.26:537:02Full Moon21Sun
22Mon6:211.78:121.911:150.611:341.46:537:01Waning Gibbous22Mon
23Tue6:381.79:221.912:040.56:547:00Waning Gibbous23Tue
24Wed6:571.810:421.912:231.61:000.46:546:59Waning Gibbous24Wed
25Thu7:161.81:321.72:020.36:556:57Third Quarter25Thu
26Fri12:061.97:37 AM1.83:471.83:090.36:566:56Third Quarter26Fri
27Sat1:201.94:190.46:566:55Third Quarter27Sat
28Sun2:171.910:12 AM1.86:521.85:300.46:576:54Third Quarter28Sun
29Mon3:021.912:371.77:211.66:400.56:576:53Waning Crescent29Mon
30Tue3:391.92:131.87:521.57:420.76:586:51Waning Crescent30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8764165)

Common Questions About Shell Island, Atchafalaya Bay, LA Tides

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What time does the tide turn (slack tide) in Shell Island, Atchafalaya Bay, LA today?

Slack tide in Shell Island, Atchafalaya Bay, LA is approximately 8:13 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 Shell Island, Atchafalaya Bay, LA?

Shell Island, Atchafalaya Bay, 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 Shell Island, Atchafalaya Bay, 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 Shell Island, Atchafalaya Bay, LA?

Tide predictions for Shell Island, Atchafalaya Bay, 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 Shell Island, Atchafalaya Bay, LA?

Tide data for Shell Island, Atchafalaya Bay, LA is sourced from NOAA Station #8764165. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8764165.

What is the moon phase in Shell Island, Atchafalaya Bay, LA tonight?

Tonight the moon over Shell Island, Atchafalaya Bay, LA is New Moon (1% illuminated). This places Shell Island, Atchafalaya Bay, 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