Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 10:09 am (-3.1 ft)
Next high tide : in 42m at 3:41 am (17.6 ft)
Sunset today : 9:53 pm
Sunrise tomorrow : 4:20 am
Moon phase : Waxing Crescent (16% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Mar 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:5513.810:0512.83:035.83:391.85:554:30Waxing Gibbous1Tue
2Wed9:4714.910:4214.13:544.44:210.55:524:33Waxing Gibbous2Wed
3Thu10:3216.011:1615.34:362.94:59-0.75:504:35Waxing Gibbous3Thu
4Fri11:1416.911:5016.55:151.45:36-1.65:474:37Full Moon4Fri
5Sat11:5417.65:530.16:12-2.15:444:40Full Moon5Sat
6Sun12:2317.412:3417.86:31-1.06:49-2.15:414:42Full Moon6Sun
7Mon12:5718.11:1517.57:10-1.77:26-1.75:384:45Waning Gibbous7Mon
8Tue1:3318.31:5816.87:52-1.88:06-0.75:354:47Waning Gibbous8Tue
9Wed2:1218.12:4415.68:36-1.58:490.75:334:49Waning Gibbous9Wed
10Thu2:5417.53:3714.29:26-0.69:392.35:304:52Third Quarter10Thu
11Fri3:4416.44:4312.810:240.510:403.95:274:54Third Quarter11Fri
12Sat4:4515.26:1211.911:351.511:595.05:244:56Third Quarter12Sat
13Sun6:0314.47:4712.112:581.95:214:59Third Quarter13Sun
14Mon7:3014.29:0113.11:285.02:181.55:185:01Waning Crescent14Mon
15Tue8:4514.79:5614.32:454.13:230.75:155:03Waning Crescent15Tue
16Wed9:4615.510:4015.43:462.74:14-0.15:125:06Waning Crescent16Wed
17Thu10:3616.211:1816.24:351.34:57-0.75:105:08New Moon17Thu
18Fri11:2016.611:5116.75:180.25:35-0.95:075:10New Moon18Fri
19Sat11:5916.75:56-0.66:10-0.85:045:12New Moon19Sat
20Sun12:2217.012:3516.56:32-1.06:44-0.45:015:15New Moon20Sun
21Mon12:5117.01:0916.07:06-1.07:150.44:585:17Waxing Crescent21Mon
22Tue1:1916.71:4215.37:39-0.67:461.34:555:19Waxing Crescent22Tue
23Wed1:4816.22:1614.48:120.08:172.54:525:22Waxing Crescent23Wed
24Thu2:1815.52:5113.38:470.88:493.74:495:24Waxing Crescent24Thu
25Fri2:5214.73:3312.29:251.89:264.84:465:26First Quarter25Fri
26Sat3:3113.74:2611.110:122.810:155.94:435:29First Quarter26Sat
27Sun4:2412.75:4310.511:143.611:306.64:415:31First Quarter27Sun
28Mon5:3812.17:1710.712:333.84:385:33First Quarter28Mon
29Tue7:0412.28:2811.61:086.51:513.34:355:35Waxing Gibbous29Tue
30Wed8:1712.99:1812.92:255.42:532.24:325:38Waxing Gibbous30Wed
31Thu9:1614.19:5814.43:213.83:411.04:295:40Waxing Gibbous31Thu
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 6:55 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 spring phase. Tonight's moon is 16% 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 Crescent (16% 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