Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 5:19 pm (6.6 ft)
Next high tide : in 5h 27m at 11:57 am (11.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Jan 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:4117.011:4314.74:464.05:21-1.27:522:16Full Moon1Mon
2Tue11:2117.65:273.45:59-2.17:512:17Full Moon2Tue
3Wed12:2215.412:0118.16:062.96:36-2.77:512:19Full Moon3Wed
4Thu1:0015.912:4118.26:462.57:15-2.97:502:20Waning Gibbous4Thu
5Fri1:3816.21:2217.97:282.27:55-2.77:502:22Waning Gibbous5Fri
6Sat2:1816.32:0617.28:122.28:37-2.07:492:23Waning Gibbous6Sat
7Sun3:0016.22:5416.19:012.39:23-0.97:482:25Waning Gibbous7Sun
8Mon3:4616.03:4914.79:562.610:130.57:472:27Third Quarter8Mon
9Tue4:3915.84:5513.411:002.811:122.07:462:29Third Quarter9Tue
10Wed5:3915.66:1812.412:132.77:452:30Third Quarter10Wed
11Thu6:4515.67:4712.312:213.21:302.17:442:32Waning Crescent11Thu
12Fri7:5116.09:0612.91:353.92:401.07:432:34Waning Crescent12Fri
13Sat8:5316.610:1013.92:463.93:40-0.17:422:36Waning Crescent13Sat
14Sun9:4817.211:0214.83:473.64:32-1.27:412:38Waning Crescent14Sun
15Mon10:3717.711:4815.54:413.05:17-2.07:392:40New Moon15Mon
16Tue11:2318.05:282.55:59-2.47:382:42New Moon16Tue
17Wed12:2916.012:0517.96:122.16:38-2.47:372:45New Moon17Wed
18Thu1:0616.112:4417.66:532.07:15-2.07:352:47New Moon18Thu
19Fri1:4116.01:2117.07:322.17:50-1.37:332:49Waxing Crescent19Fri
20Sat2:1415.81:5716.18:102.48:23-0.47:322:51Waxing Crescent20Sat
21Sun2:4615.32:3415.08:482.98:570.87:302:53Waxing Crescent21Sun
22Mon3:1914.83:1313.89:293.49:322.17:282:56Waxing Crescent22Mon
23Tue3:5514.33:5712.510:144.010:103.47:272:58First Quarter23Tue
24Wed4:3813.84:5311.311:094.510:574.77:253:00First Quarter24Wed
25Thu5:3013.46:0810.512:154.67:233:03First Quarter25Thu
26Fri6:3213.37:3910.512:015.71:294.17:213:05First Quarter26Fri
27Sat7:3813.78:5711.21:216.22:363.27:193:07Waxing Gibbous27Sat
28Sun8:3814.59:5512.32:356.03:311.87:173:10Waxing Gibbous28Sun
29Mon9:3115.510:4213.53:355.24:170.37:153:12Waxing Gibbous29Mon
30Tue10:1916.611:2314.74:244.24:59-1.17:133:15Waxing Gibbous30Tue
31Wed11:0317.65:083.05:39-2.37:113:17Full Moon31Wed
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 2:38 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 spring phase. Tonight's moon is 83% 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 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 Waxing Gibbous (83% illuminated). This places William Henry Bay, AK 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