Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide (tomorrow) : in 4h 52m at 12:12 am (1.6 ft)
Next high tide (tomorrow) : 6:06 am (12.3 ft)
Sunset today : 9:16 pm
Sunrise tomorrow : 4:57 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Jul 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:1711.79:3514.73:471.23:465.11:558:13Waxing Gibbous1Fri
2Sat11:0312.410:1815.24:310.54:334.81:568:12Waxing Gibbous2Sat
3Sun11:4213.010:5915.75:09-0.25:144.31:578:12Full Moon3Sun
4Mon12:1713.55:45-0.85:523.81:598:11Full Moon4Mon
5Tue12:5013.96:19-1.26:283.42:008:10Full Moon5Tue
6Wed12:1516.21:2114.36:51-1.57:043.12:018:09Full Moon6Wed
7Thu12:5116.11:5114.57:23-1.57:392.82:028:08Waning Gibbous7Thu
8Fri1:2715.82:2214.67:55-1.38:162.72:048:07Waning Gibbous8Fri
9Sat2:0415.22:5314.78:28-0.78:562.62:058:06Waning Gibbous9Sat
10Sun2:4414.43:2914.89:040.19:422.52:078:05Waning Gibbous10Sun
11Mon3:3013.44:0914.89:451.210:362.52:088:03Third Quarter11Mon
12Tue4:2612.34:5914.810:332.511:412.32:108:02Third Quarter12Tue
13Wed5:3711.45:5914.911:333.82:118:01Third Quarter13Wed
14Thu7:0511.17:0715.312:541.712:474.62:137:59Waning Crescent14Thu
15Fri8:3211.68:1616.02:070.72:084.82:157:58Waning Crescent15Fri
16Sat9:4412.79:2016.93:14-0.63:204.22:167:56Waning Crescent16Sat
17Sun10:4313.910:1917.84:12-2.04:213.22:187:55New Moon17Sun
18Mon11:3315.111:1218.45:03-3.25:152.12:207:53New Moon18Mon
19Tue12:1816.05:51-3.96:051.12:227:51New Moon19Tue
20Wed12:0318.61:0116.76:35-4.16:520.42:247:49New Moon20Wed
21Thu12:5018.31:4116.97:17-3.87:380.22:267:48Waxing Crescent21Thu
22Fri1:3617.52:1916.87:58-2.88:230.42:287:46Waxing Crescent22Fri
23Sat2:2016.32:5716.48:39-1.49:090.92:307:44Waxing Crescent23Sat
24Sun3:0514.73:3515.79:190.39:581.62:327:42First Quarter24Sun
25Mon3:5413.14:1614.910:012.110:512.52:347:40First Quarter25Mon
26Tue4:5011.55:0314.110:493.911:543.12:367:38First Quarter26Tue
27Wed6:0410.45:5913.411:495.42:387:36First Quarter27Wed
28Thu7:3710.07:0613.21:073.41:046.32:407:34Waxing Gibbous28Thu
29Fri9:0010.58:1213.42:203.12:216.42:427:31Waxing Gibbous29Fri
30Sat9:5911.39:1014.03:212.33:245.92:447:29Waxing Gibbous30Sat
31Sun10:4312.29:5914.84:091.44:145.02:477:27Waxing Gibbous31Sun
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 3:09 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 transitional phase. Tonight's moon is 64% 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 shifting between spring and neap.

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 Third Quarter (64% illuminated). This places William Henry Bay, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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