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

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Shell Island, Atchafalaya Bay, LA.
Next low tide : 12:52 pm (1.2 ft)
Next high tide : in 2h 24m at 8:28 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 - Jan 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:140.89:280.91:010.512:31-0.26:595:18Waning Gibbous1Sat
2Sun8:570.610:070.92:180.31:230.07:005:18Third Quarter2Sun
3Mon10:580.610:440.83:270.12:160.37:005:19Third Quarter3Mon
4Tue12:550.64:29-0.13:220.57:005:20Third Quarter4Tue
5Wed2:460.75:24-0.35:560.77:005:21Waning Crescent5Wed
6Thu4:230.96:12-0.58:250.87:005:22Waning Crescent6Thu
7Fri12:010.85:060.96:53-0.67:005:22Waning Crescent7Fri
8Sat5:300.97:29-0.67:005:23Waning Crescent8Sat
9Sun5:510.98:02-0.79:310.87:005:24Waning Crescent9Sun
10Mon12:220.86:130.98:33-0.79:030.87:005:25New Moon10Mon
11Tue1:350.86:380.99:03-0.79:100.77:005:25New Moon11Tue
12Wed2:320.87:040.99:33-0.79:450.77:005:26New Moon12Wed
13Thu3:250.87:310.910:03-0.610:420.67:005:27New Moon13Thu
14Fri4:170.77:580.810:32-0.57:005:28Waxing Crescent14Fri
15Sat5:140.68:240.812:030.511:03 AM-0.47:005:29Waxing Crescent15Sat
16Sun6:190.58:460.71:100.411:34 AM-0.27:005:30Waxing Crescent16Sun
17Mon7:450.49:040.72:000.212:060.06:595:31Waxing Crescent17Mon
18Tue9:560.49:180.72:420.112:420.26:595:31First Quarter18Tue
19Wed9:320.73:23-0.16:595:32First Quarter19Wed
20Thu9:500.74:06-0.36:595:33First Quarter20Thu
21Fri10:230.84:54-0.66:585:34Waxing Gibbous21Fri
22Sat3:420.95:44-0.86:160.86:585:35Waxing Gibbous22Sat
23Sun4:241.06:35-0.97:050.86:585:36Waxing Gibbous23Sun
24Mon12:300.95:021.07:25-1.07:380.86:575:36Waxing Gibbous24Mon
25Tue1:441.05:371.08:14-1.18:160.76:575:37Full Moon25Tue
26Wed2:561.06:120.99:02-1.09:010.66:565:38Full Moon26Wed
27Thu4:061.06:460.99:49-0.99:560.46:565:39Full Moon27Thu
28Fri5:150.97:200.810:37-0.611:020.26:555:40Waning Gibbous28Fri
29Sat6:250.87:540.811:25-0.46:555:41Waning Gibbous29Sat
30Sun7:410.78:270.712:150.112:12-0.16:545:42Waning Gibbous30Sun
31Mon9:130.68:590.71:25-0.112:580.26:545:42Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8764165)

Common Questions About Shell Island, Atchafalaya Bay, LA Tides

Show All
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 10:40 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