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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Shell Island, Atchafalaya Bay, LA.
Next low tide : in 3h 01m at 5:41 pm (-0.1 ft)
Next high tide (tomorrow) : 6:01 am (1.5 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:19 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8764165
Common Questions About Tides

Shell Island, Atchafalaya Bay, LA Tides - Mar 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:151.06:28-0.37:250.86:306:04Waxing Gibbous1Tue
2Wed12:210.94:331.07:11-0.37:440.86:296:05Waxing Gibbous2Wed
3Thu1:430.94:521.07:50-0.38:070.76:286:05Waxing Gibbous3Thu
4Fri2:531.05:121.08:27-0.28:340.56:276:06Full Moon4Fri
5Sat3:581.05:321.09:04-0.19:080.46:266:07Full Moon5Sat
6Sun5:011.15:520.99:420.09:490.26:256:07Full Moon6Sun
7Mon6:031.16:120.910:220.210:360.06:236:08Waning Gibbous7Mon
8Tue7:091.16:311.011:060.511:31-0.16:226:09Waning Gibbous8Tue
9Wed8:221.16:511.011:540.76:216:09Waning Gibbous9Wed
10Thu9:441.17:121.012:31-0.212:460.96:206:10Waning Gibbous10Thu
11Fri11:121.17:361.11:36-0.31:451.06:196:11Third Quarter11Fri
12Sat12:361.22:45-0.33:351.16:186:11Third Quarter12Sat
13Sun1:461.23:58-0.35:561.16:176:12Third Quarter13Sun
14Mon2:391.15:12-0.36:421.06:156:12Waning Crescent14Mon
15Tue12:031.13:201.16:20-0.27:130.96:146:13Waning Crescent15Tue
16Wed1:311.13:541.17:19-0.17:430.86:136:14Waning Crescent16Wed
17Thu2:441.24:231.18:090.08:130.66:126:14Waning Crescent17Thu
18Fri3:471.24:501.18:520.28:430.56:116:15New Moon18Fri
19Sat4:451.25:141.09:300.39:150.46:096:16New Moon19Sat
20Sun5:381.25:341.010:040.59:500.36:086:16New Moon20Sun
21Mon6:301.25:491.010:370.610:270.26:076:17New Moon21Mon
22Tue7:221.25:571.011:120.811:080.16:066:17Waxing Crescent22Tue
23Wed8:201.25:581.111:510.911:550.16:056:18Waxing Crescent23Wed
24Thu9:281.26:041.112:391.06:036:18Waxing Crescent24Thu
25Fri10:471.26:151.112:450.11:441.16:026:19Waxing Crescent25Fri
26Sat12:081.21:390.13:261.16:016:20First Quarter26Sat
27Sun1:131.22:370.16:006:20First Quarter27Sun
28Mon1:591.23:370.25:596:21First Quarter28Mon
29Tue2:321.24:390.26:411.15:586:21First Quarter29Tue
30Wed2:571.25:390.26:531.05:566:22Waxing Gibbous30Wed
31Thu12:471.13:201.26:320.37:110.95:556:23Waxing Gibbous31Thu
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 11:51 pm — 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 First Quarter (62% illuminated). This places Shell Island, Atchafalaya Bay, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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