Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 10:46 pm (0.1 ft)
Next high tide : in 27m at 4:28 pm (16.8 ft)
Sunset today : 8:45 pm
Sunrise tomorrow : 5:24 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Jan 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:2115.49:5512.32:186.03:231.27:522:16Waning Crescent1Tue
2Wed9:1616.510:4813.53:235.64:14-0.47:512:18Waning Crescent2Wed
3Thu10:0917.611:3414.64:184.75:01-1.97:512:19New Moon3Thu
4Fri10:5918.65:083.75:45-3.17:502:20New Moon4Fri
5Sat12:1715.611:47 AM19.25:552.76:29-3.97:502:22New Moon5Sat
6Sun12:5916.412:3519.36:421.97:11-4.17:492:24Waxing Crescent6Sun
7Mon1:4017.01:2218.97:291.37:54-3.67:482:25Waxing Crescent7Mon
8Tue2:2217.22:1017.98:171.08:37-2.57:472:27Waxing Crescent8Tue
9Wed3:0417.23:0116.39:091.19:21-0.97:462:29Waxing Crescent9Wed
10Thu3:4816.83:5614.510:041.510:091.07:452:31First Quarter10Thu
11Fri4:3616.35:0012.811:062.011:033.07:442:33First Quarter11Fri
12Sat5:3115.76:2211.512:162.37:432:34First Quarter12Sat
13Sun6:3415.27:5711.212:084.81:312.27:422:36Waxing Gibbous13Sun
14Mon7:4215.09:2111.71:265.92:431.77:412:38Waxing Gibbous14Mon
15Tue8:4715.210:2412.52:436.13:441.07:392:40Waxing Gibbous15Tue
16Wed9:4315.611:1113.43:475.84:330.27:382:43Waxing Gibbous16Wed
17Thu10:3116.011:5014.04:395.15:15-0.57:362:45Full Moon17Thu
18Fri11:1316.45:224.45:52-1.07:352:47Full Moon18Fri
19Sat12:2314.511:51 AM16.66:013.86:26-1.27:332:49Full Moon19Sat
20Sun12:5214.912:2616.66:363.36:57-1.37:322:51Full Moon20Sun
21Mon1:2015.212:5916.47:092.97:27-1.07:302:54Waning Gibbous21Mon
22Tue1:4615.31:3115.97:412.77:55-0.57:282:56Waning Gibbous22Tue
23Wed2:1215.42:0415.18:132.78:230.47:262:58Waning Gibbous23Wed
24Thu2:3915.32:3714.18:462.88:521.57:253:01Waning Gibbous24Thu
25Fri3:0815.13:1413.09:243.19:242.77:233:03Third Quarter25Fri
26Sat3:4214.83:5911.810:083.410:024.17:213:05Third Quarter26Sat
27Sun4:2314.55:0210.611:043.610:515.57:193:08Third Quarter27Sun
28Mon5:1714.36:3810.012:173.67:173:10Third Quarter28Mon
29Tue6:2814.38:2610.512:056.51:413.07:153:12Waning Crescent29Tue
30Wed7:4514.89:4011.81:406.82:551.67:133:15Waning Crescent30Wed
31Thu8:5415.910:3313.33:016.03:55-0.17:113:17Waning Crescent31Thu
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 7:37 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 20% 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 (20% 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