Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide : in 5h 39m at 10:05 pm (-0.4 ft)
Next high tide (tomorrow) : 4:05 am (16.2 ft)
Sunset today : 8:48 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Oct 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:5919.45:53-1.16:24-3.75:064:34Full Moon1Thu
2Fri12:3317.812:3719.76:34-0.67:07-3.95:084:31Waning Gibbous2Fri
3Sat1:1917.21:1819.47:160.47:52-3.35:104:29Waning Gibbous3Sat
4Sun2:0816.12:0218.48:011.78:41-2.25:124:26Waning Gibbous4Sun
5Mon3:0014.82:5017.08:503.39:35-0.65:154:23Third Quarter5Mon
6Tue4:0213.43:4815.49:494.810:401.05:174:20Third Quarter6Tue
7Wed5:2112.45:0313.911:065.911:572.15:194:17Third Quarter7Wed
8Thu6:5212.36:3413.112:386.05:224:14Third Quarter8Thu
9Fri8:0713.07:5713.31:182.52:015.15:244:11Waning Crescent9Fri
10Sat9:0113.99:0213.82:262.33:033.75:264:09Waning Crescent10Sat
11Sun9:4214.89:5214.43:191.93:512.35:284:06Waning Crescent11Sun
12Mon10:1615.610:3514.94:021.64:311.15:314:03Waning Crescent12Mon
13Tue10:4516.211:1215.24:381.45:060.25:334:00New Moon13Tue
14Wed11:1316.611:4715.35:121.55:38-0.55:353:57New Moon14Wed
15Thu11:3916.95:441.86:08-0.85:383:55New Moon15Thu
16Fri12:2015.212:0716.96:152.26:38-0.85:403:52New Moon16Fri
17Sat12:5214.912:3516.86:452.97:08-0.65:423:49Waxing Crescent17Sat
18Sun1:2514.41:0516.47:153.67:39-0.15:453:46Waxing Crescent18Sun
19Mon1:5813.71:3715.87:464.48:140.65:473:44Waxing Crescent19Mon
20Tue2:3612.92:1315.18:205.38:531.45:493:41Waxing Crescent20Tue
21Wed3:2112.12:5614.29:036.19:422.25:523:38First Quarter21Wed
22Thu4:2111.53:5413.210:036.710:442.95:543:36First Quarter22Thu
23Fri5:4211.45:1212.611:266.811:593.15:563:33First Quarter23Fri
24Sat6:5912.16:4012.612:556.05:593:30First Quarter24Sat
25Sun7:5713.47:5613.41:142.82:064.26:013:28Waxing Gibbous25Sun
26Mon8:4415.08:5914.52:172.23:022.16:043:25Waxing Gibbous26Mon
27Tue9:2616.69:5515.63:111.53:51-0.26:063:23Waxing Gibbous27Tue
28Wed10:0718.110:4616.53:590.94:37-2.16:083:20Full Moon28Wed
29Thu10:4819.211:3517.04:450.65:21-3.66:113:18Full Moon29Thu
30Fri11:3019.95:300.66:06-4.46:133:15Full Moon30Fri
31Sat12:2317.112:1320.06:141.06:51-4.46:163:13Waning Gibbous31Sat
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 1:05 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 12% 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 (12% 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