Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide : in 26m at 2:29 am (1.9 ft)
Next high tide : 8:53 am (10.5 ft)
Sunset today : 9:08 pm
Sunrise tomorrow : 5:04 am
Moon phase : Waning Crescent (31% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Sep 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:2914.12:3815.38:322.49:081.53:586:03Waning Gibbous1Fri
2Sat3:0612.83:0814.59:014.09:482.54:016:00Third Quarter2Sat
3Sun3:4911.43:4513.69:345.510:383.54:035:57Third Quarter3Sun
4Mon4:5010.24:3812.710:177.011:514.34:055:54Third Quarter4Mon
5Tue6:389.55:5912.111:438.04:075:51Third Quarter5Tue
6Wed8:3510.17:3312.41:274.21:488.04:095:48Waning Crescent6Wed
7Thu9:3511.28:4513.42:453.23:036.84:125:45Waning Crescent7Thu
8Fri10:1312.59:3814.63:381.93:535.34:145:42Waning Crescent8Fri
9Sat10:4513.810:2315.84:190.44:333.74:165:39Waning Crescent9Sat
10Sun11:1515.111:0516.84:55-0.85:102.04:185:37New Moon10Sun
11Mon11:4416.311:4517.45:29-1.75:460.44:205:34New Moon11Mon
12Tue12:1417.36:03-2.06:23-0.94:235:31New Moon12Tue
13Wed12:2517.612:4618.16:38-1.87:01-1.84:255:28Waxing Crescent13Wed
14Thu1:0617.21:1818.47:13-1.17:41-2.14:275:25Waxing Crescent14Thu
15Fri1:4816.41:5418.37:510.28:24-1.84:295:22Waxing Crescent15Fri
16Sat2:3415.12:3317.68:311.89:12-0.84:325:19Waxing Crescent16Sat
17Sun3:2613.53:1916.59:173.710:090.44:345:16First Quarter17Sun
18Mon4:3612.04:1815.210:165.511:231.74:365:13First Quarter18Mon
19Tue6:1911.25:4014.011:426.74:385:10First Quarter19Tue
20Wed8:0411.77:1813.812:542.21:256.64:405:07Waxing Gibbous20Wed
21Thu9:1312.98:3914.42:201.72:475.44:435:05Waxing Gibbous21Thu
22Fri10:0214.29:4015.33:250.83:463.74:455:02Waxing Gibbous22Fri
23Sat10:4115.310:2916.04:130.04:322.14:474:59Waxing Gibbous23Sat
24Sun11:1416.111:1116.44:52-0.65:120.74:494:56Full Moon24Sun
25Mon11:4316.711:4916.55:28-0.75:49-0.34:514:53Full Moon25Mon
26Tue12:1017.06:00-0.46:23-0.84:544:50Full Moon26Tue
27Wed12:2416.212:3517.06:300.36:55-1.04:564:47Full Moon27Wed
28Thu12:5715.71:0016.86:591.27:26-0.74:584:44Waning Gibbous28Thu
29Fri1:3015.01:2516.47:282.47:56-0.15:004:41Waning Gibbous29Fri
30Sat2:0314.01:5215.77:553.78:290.85:034:38Waning Gibbous30Sat
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 5:41 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 William Henry Bay, AK?

William Henry Bay, AK is currently in a transitional phase. Tonight's moon is 31% 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 Waning Crescent (31% 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