Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide (tomorrow) : 3:23 am (3.1 ft)
Next high tide : in 4h 29m at 8:15 pm (13.6 ft)
Sunset today : 9:44 pm
Sunrise tomorrow : 4:30 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - May 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:5813.39:3915.02:572.93:121.44:047:51Waxing Gibbous1Wed
2Thu10:0613.910:2616.03:591.34:101.24:017:53Waxing Gibbous2Thu
3Fri11:0314.511:0816.84:52-0.35:001.13:597:56Waxing Gibbous3Fri
4Sat11:5415.011:4817.45:38-1.55:461.13:567:58Full Moon4Sat
5Sun12:4015.26:21-2.36:281.43:548:00Full Moon5Sun
6Mon12:2517.61:2215.27:00-2.77:091.83:518:03Full Moon6Mon
7Tue1:0217.42:0215.07:38-2.57:482.33:498:05Full Moon7Tue
8Wed1:3817.02:4114.48:15-2.08:263.03:478:07Waning Gibbous8Wed
9Thu2:1416.43:2013.88:52-1.29:053.83:448:09Waning Gibbous9Thu
10Fri2:5115.54:0013.09:30-0.39:474.53:428:12Waning Gibbous10Fri
11Sat3:3114.54:4412.310:100.810:335.23:408:14Waning Gibbous11Sat
12Sun4:1513.45:3511.810:551.811:305.73:378:16Third Quarter12Sun
13Mon5:0812.36:3411.611:462.73:358:18Third Quarter13Mon
14Tue6:1411.47:3511.912:395.712:473.43:338:20Third Quarter14Tue
15Wed7:2911.18:3012.51:525.21:513.73:318:23Third Quarter15Wed
16Thu8:4211.39:1713.42:564.12:523.73:298:25Waning Crescent16Thu
17Fri9:4511.99:5914.53:492.73:463.53:278:27Waning Crescent17Fri
18Sat10:3912.710:3915.64:351.24:343.23:258:29Waning Crescent18Sat
19Sun11:2713.611:1816.65:17-0.45:192.83:238:31Waning Crescent19Sun
20Mon12:1414.35:58-1.76:022.53:218:33New Moon20Mon
21Tue12:5914.96:39-2.86:452.23:198:35New Moon21Tue
22Wed12:4018.01:4415.27:21-3.57:282.13:178:37New Moon22Wed
23Thu1:2418.22:2915.38:04-3.88:142.23:158:39Waxing Crescent23Thu
24Fri2:1018.03:1615.28:49-3.69:022.43:138:41Waxing Crescent24Fri
25Sat2:5817.34:0614.99:37-2.99:562.83:118:43Waxing Crescent25Sat
26Sun3:5016.25:0014.610:28-1.810:573.13:108:45First Quarter26Sun
27Mon4:5014.95:5814.411:24-0.63:088:47First Quarter27Mon
28Tue5:5813.57:0114.412:063.212:250.73:078:49First Quarter28Tue
29Wed7:1712.68:0214.81:202.91:301.73:058:50First Quarter29Wed
30Thu8:3712.38:5915.32:322.02:362.43:048:52Waxing Gibbous30Thu
31Fri9:5012.69:5015.83:360.93:382.83:028:54Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9452391)

Common Questions About William Henry Bay, AK Tides

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What time does the tide turn (slack tide) in William Henry Bay, AK today?

Slack tide in William Henry Bay, AK is approximately 11:49 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 William Henry Bay, AK?

William Henry Bay, AK is currently in a transitional phase. Tonight's moon is 63% 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 William Henry Bay, AK 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 William Henry Bay, AK?

Tide predictions for William Henry Bay, AK 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 William Henry Bay, AK?

Tide data for William Henry Bay, AK is sourced from NOAA Station #9452391. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9452391.

What is the moon phase in William Henry Bay, AK tonight?

Tonight the moon over William Henry Bay, AK is First Quarter (63% illuminated). This places William Henry Bay, AK 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