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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Shell Island, Atchafalaya Bay, LA.
Next low tide (tomorrow) : 3:07 am (0.5 ft)
Next high tide : in 3h 56m at 10:19 pm (1.0 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8764165
Common Questions About Tides

Shell Island, Atchafalaya Bay, LA Tides - Nov 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:441.67:411.910:160.411:241.67:186:19Full Moon1Tue
2Wed4:161.78:321.910:450.37:196:18Full Moon2Wed
3Thu9:281.911:180.37:196:17Waning Gibbous3Thu
4Fri10:341.911:550.27:206:16Waning Gibbous4Fri
5Sat11:581.912:390.37:216:16Waning Gibbous5Sat
6Sun12:280.36:225:15Waning Gibbous6Sun
7Mon12:171.91:210.46:235:14Third Quarter7Mon
8Tue1:011.92:160.46:235:14Third Quarter8Tue
9Wed1:281.83:140.56:245:13Third Quarter9Wed
10Thu1:481.84:150.66:255:12Third Quarter10Thu
11Fri2:031.712:201.37:191.25:180.76:265:12Waning Crescent11Fri
12Sat2:161.62:071.47:101.06:190.96:265:11Waning Crescent12Sat
13Sun2:251.63:241.67:200.77:171.16:275:11Waning Crescent13Sun
14Mon2:311.54:281.87:420.48:121.36:285:10New Moon14Mon
15Tue2:361.65:271.98:120.19:051.56:295:10New Moon15Tue
16Wed2:411.66:242.08:49-0.210:011.66:305:09New Moon16Wed
17Thu2:431.77:222.19:32-0.411:351.76:315:09New Moon17Thu
18Fri2:211.78:242.010:21-0.46:315:08Waxing Crescent18Fri
19Sat9:341.911:17-0.46:325:08Waxing Crescent19Sat
20Sun10:481.812:19-0.36:335:08Waxing Crescent20Sun
21Mon11:491.71:25-0.16:345:07First Quarter21Mon
22Tue2:340.16:355:07First Quarter22Tue
23Wed12:311.63:460.36:355:07First Quarter23Wed
24Thu1:031.512:081.26:301.05:020.66:365:07Waxing Gibbous24Thu
25Fri1:291.41:531.26:490.86:170.86:375:06Waxing Gibbous25Fri
26Sat1:511.43:171.37:140.57:251.06:385:06Waxing Gibbous26Sat
27Sun2:081.34:271.57:390.38:271.26:395:06Waxing Gibbous27Sun
28Mon2:151.35:211.58:020.19:271.36:395:06Full Moon28Mon
29Tue1:561.36:071.68:26-0.16:405:06Full Moon29Tue
30Wed6:471.68:52-0.26:415:06Full 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 12:43 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 transitional phase. Tonight's moon is 38% 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 (38% 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