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

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Shell Island, Atchafalaya Bay, LA.
Next low tide : in 5h 42m at 11:14 pm (0.1 ft)
Next high tide (tomorrow) : 8:43 am (1.4 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8764165
Common Questions About Tides

Shell Island, Atchafalaya Bay, LA Tides - Nov 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:021.75:582.09:090.49:591.47:196:18New Moon1Tue
2Wed4:261.76:532.09:480.210:451.57:196:17New Moon2Wed
3Thu4:461.77:452.010:270.211:331.67:206:16New Moon3Thu
4Fri4:571.78:382.011:080.17:216:16Waxing Crescent4Fri
5Sat4:521.79:341.912:421.711:50 AM0.27:226:15Waxing Crescent5Sat
6Sun9:361.811:360.36:225:14Waxing Crescent6Sun
7Mon10:421.812:240.46:235:14Waxing Crescent7Mon
8Tue11:371.71:140.56:245:13First Quarter8Tue
9Wed2:070.66:255:12First Quarter9Wed
10Thu12:171.73:010.76:265:12First Quarter10Thu
11Fri12:471.611:42 AM1.27:251.24:000.96:265:11First Quarter11Fri
12Sat1:101.61:261.36:371.05:041.06:275:11Waxing Gibbous12Sat
13Sun1:291.52:391.46:500.86:071.16:285:10Waxing Gibbous13Sun
14Mon1:431.53:371.57:100.67:011.26:295:10Waxing Gibbous14Mon
15Tue1:561.54:261.67:340.47:481.36:305:09Waxing Gibbous15Tue
16Wed2:081.55:101.78:000.28:291.46:305:09Full Moon16Wed
17Thu2:251.65:531.88:280.19:061.46:315:08Full Moon17Thu
18Fri2:451.66:361.89:00-0.19:391.56:325:08Full Moon18Fri
19Sat3:081.67:231.89:37-0.210:141.66:335:08Full Moon19Sat
20Sun3:341.68:131.810:19-0.211:101.66:345:07Waning Gibbous20Sun
21Mon4:051.69:081.711:06-0.26:345:07Waning Gibbous21Mon
22Tue4:451.510:021.71:511.511:59 AM-0.16:355:07Waning Gibbous22Tue
23Wed5:541.410:511.63:031.412:570.16:365:07Third Quarter23Wed
24Thu7:461.311:321.53:511.21:590.36:375:06Third Quarter24Thu
25Fri10:281.24:361.03:060.56:385:06Third Quarter25Fri
26Sat12:071.412:311.25:190.74:270.86:385:06Waning Crescent26Sat
27Sun12:391.42:041.36:010.45:591.06:395:06Waning Crescent27Sun
28Mon1:091.43:191.46:420.27:191.16:405:06Waning Crescent28Mon
29Tue1:371.44:221.57:210.08:241.26:415:06Waning Crescent29Tue
30Wed2:021.45:141.67:59-0.29:161.36:425:06New Moon30Wed
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 3:58 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 96% 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 Waning Gibbous (96% 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