Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 1:02 pm (1.1 ft)
Next high tide : in 2h 00m at 6:41 am (13.1 ft)
Sunset today : 10:15 pm
Sunrise tomorrow : 3:50 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Oct 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:3015.74:2118.010:232.011:01-1.57:056:35Waxing Crescent1Sat
2Sun5:2514.35:1216.511:153.611:580.27:086:32First Quarter2Sun
3Mon6:3312.96:1314.912:195.17:106:29First Quarter3Mon
4Tue8:0012.27:3213.61:071.71:415.97:126:26First Quarter4Tue
5Wed9:2712.49:0313.12:282.63:105.77:146:23First Quarter5Wed
6Thu10:3413.210:2013.43:482.64:254.77:176:20Waxing Gibbous6Thu
7Fri11:2214.111:1914.04:502.35:213.37:196:18Waxing Gibbous7Fri
8Sat12:0015.05:391.86:062.07:216:15Waxing Gibbous8Sat
9Sun12:0514.612:3215.76:181.56:440.87:236:12Waxing Gibbous9Sun
10Mon12:4515.01:0016.26:531.47:180.07:266:09Full Moon10Mon
11Tue1:2115.31:2716.67:251.57:49-0.67:286:06Full Moon11Tue
12Wed1:5515.41:5316.87:551.88:20-0.87:306:04Full Moon12Wed
13Thu2:2715.32:2016.88:242.38:50-0.87:336:01Full Moon13Thu
14Fri3:0015.02:4916.68:542.99:21-0.57:355:58Waning Gibbous14Fri
15Sat3:3214.43:1816.29:233.69:530.17:375:55Waning Gibbous15Sat
16Sun4:0713.73:5015.69:544.510:300.87:405:52Waning Gibbous16Sun
17Mon4:4612.94:2714.810:305.311:131.67:425:50Waning Gibbous17Mon
18Tue5:3512.15:1413.811:176.17:445:47Third Quarter18Tue
19Wed6:4111.56:2013.012:062.312:236.77:475:44Third Quarter19Wed
20Thu8:0411.67:4712.61:152.91:536.67:495:42Third Quarter20Thu
21Fri9:1812.69:1313.02:322.93:205.57:515:39Third Quarter21Fri
22Sat10:1414.010:2513.93:432.44:273.57:545:36Waning Crescent22Sat
23Sun11:0015.611:2415.14:421.65:211.37:565:34Waning Crescent23Sun
24Mon11:4317.25:330.96:09-0.87:585:31Waning Crescent24Mon
25Tue12:1816.212:2418.66:200.36:55-2.68:015:28New Moon25Tue
26Wed1:0716.91:0619.67:060.17:39-3.88:035:26New Moon26Wed
27Thu1:5617.31:4820.17:500.38:23-4.38:065:23New Moon27Thu
28Fri2:4417.22:3119.98:350.89:08-4.18:085:21Waxing Crescent28Fri
29Sat3:3216.63:1519.29:211.79:54-3.18:105:18Waxing Crescent29Sat
30Sun4:2215.84:0218.010:092.810:43-1.78:135:15Waxing Crescent30Sun
31Mon5:1614.74:5316.411:023.911:37-0.18:155:13First Quarter31Mon
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 9:51 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 neap phase. Tonight's moon is 49% 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 minimum.

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 (49% illuminated). This places William Henry Bay, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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