Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide : in 2h 45m at 9:40 am (-1.4 ft)
Next high tide : 4:02 pm (15.4 ft)
Sunset today : 9:23 pm
Sunrise tomorrow : 4:51 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Oct 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:1215.51:1516.47:161.47:360.15:054:35Waxing Crescent1Mon
2Tue1:4414.81:4316.07:452.38:080.55:074:32Waxing Crescent2Tue
3Wed2:1714.02:1415.58:163.38:431.15:104:29Waxing Crescent3Wed
4Thu2:5513.12:5014.88:524.59:261.95:124:27First Quarter4Thu
5Fri3:4412.13:3714.09:375.610:222.65:144:24First Quarter5Fri
6Sat4:5511.34:4213.310:436.511:363.15:164:21First Quarter6Sat
7Sun6:3411.26:0913.112:166.75:194:18First Quarter7Sun
8Mon7:5812.27:3413.71:022.81:465.75:214:15Waxing Gibbous8Mon
9Tue8:5613.78:4415.02:161.72:523.95:234:12Waxing Gibbous9Tue
10Wed9:4215.39:4216.33:150.53:461.85:254:10Waxing Gibbous10Wed
11Thu10:2416.910:3317.54:05-0.74:33-0.35:284:07Waxing Gibbous11Thu
12Fri11:0418.311:2218.24:50-1.65:18-2.15:304:04Full Moon12Fri
13Sat11:4319.25:34-1.96:02-3.35:324:01Full Moon13Sat
14Sun12:0918.412:2219.76:16-1.66:46-3.85:353:58Full Moon14Sun
15Mon12:5618.11:0219.56:58-0.87:30-3.65:373:56Waning Gibbous15Mon
16Tue1:4317.31:4318.87:420.58:15-2.75:393:53Waning Gibbous16Tue
17Wed2:3216.02:2717.58:272.19:04-1.35:423:50Waning Gibbous17Wed
18Thu3:2614.63:1516.09:183.89:590.35:443:47Third Quarter18Thu
19Fri4:2913.34:1314.310:205.311:031.85:463:45Third Quarter19Fri
20Sat5:5012.45:3013.011:406.35:493:42Third Quarter20Sat
21Sun7:1612.46:5812.512:202.81:096.25:513:39Third Quarter21Sun
22Mon8:2413.08:1512.91:373.02:245.35:533:37Waning Crescent22Mon
23Tue9:1313.99:1313.52:402.73:194.05:563:34Waning Crescent23Tue
24Wed9:5114.79:5914.23:292.24:022.75:583:31Waning Crescent24Wed
25Thu10:2215.410:3914.84:101.84:381.56:013:29Waning Crescent25Thu
26Fri10:5116.111:1515.24:451.55:110.66:033:26New Moon26Fri
27Sat11:1816.611:4915.55:171.45:42-0.26:053:23New Moon27Sat
28Sun11:4616.95:491.56:12-0.66:083:21New Moon28Sun
29Mon12:2215.512:1417.16:191.96:42-0.96:103:18New Moon29Mon
30Tue12:5515.312:4317.06:502.47:12-0.86:123:16Waxing Crescent30Tue
31Wed1:2914.81:1316.77:213.17:45-0.56:153:13Waxing Crescent31Wed
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 12:51 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 90% 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 Waning Gibbous (90% 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