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 4h 49m 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 - Dec 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:221.46:001.68:36-0.39:591.36:425:06New Moon1Thu
2Fri2:331.46:441.69:11-0.310:351.36:435:06New Moon2Fri
3Sat2:331.47:261.59:47-0.311:201.36:445:06New Moon3Sat
4Sun2:281.38:101.510:24-0.26:455:06Waxing Crescent4Sun
5Mon8:571.411:01-0.26:455:06Waxing Crescent5Mon
6Tue9:441.311:410.06:465:06Waxing Crescent6Tue
7Wed10:261.312:210.16:475:06Waxing Crescent7Wed
8Thu11:011.21:010.26:485:06First Quarter8Thu
9Fri11:281.21:420.46:485:06First Quarter9Fri
10Sat11:490.711:471.15:230.62:260.66:495:07First Quarter10Sat
11Sun5:410.46:505:07First Quarter11Sun
12Mon12:001.12:520.96:060.24:530.96:505:07Waxing Gibbous12Mon
13Tue12:111.13:461.16:320.06:281.06:515:07Waxing Gibbous13Tue
14Wed12:261.14:291.27:01-0.27:311.06:525:08Waxing Gibbous14Wed
15Thu12:491.25:071.37:31-0.48:131.16:525:08Waxing Gibbous15Thu
16Fri1:201.25:451.48:05-0.68:421.16:535:09Full Moon16Fri
17Sat1:581.26:241.48:42-0.79:071.16:535:09Full Moon17Sat
18Sun2:421.27:051.49:22-0.79:411.16:545:09Full Moon18Sun
19Mon3:341.27:471.310:06-0.710:321.16:545:10Waning Gibbous19Mon
20Tue4:341.28:301.210:53-0.611:570.96:555:10Waning Gibbous20Tue
21Wed5:421.19:121.211:44-0.46:555:11Waning Gibbous21Wed
22Thu7:040.99:531.11:300.812:37-0.26:565:11Third Quarter22Thu
23Fri8:570.810:301.02:420.51:330.16:565:12Third Quarter23Fri
24Sat11:080.711:061.03:450.22:330.46:575:12Third Quarter24Sat
25Sun1:000.84:430.03:560.66:575:13Third Quarter25Sun
26Mon2:330.95:37-0.36:080.86:585:14Waning Crescent26Mon
27Tue12:100.93:491.06:25-0.57:510.96:585:14Waning Crescent27Tue
28Wed12:390.94:441.17:09-0.69:020.96:585:15Waning Crescent28Wed
29Thu1:030.95:251.17:48-0.79:480.96:595:16Waning Crescent29Thu
30Fri1:210.96:001.18:25-0.710:030.96:595:16New Moon30Fri
31Sat1:390.96:331.18:59-0.79:550.96:595:17New Moon31Sat
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 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