Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide : in 3h 09m at 8:37 pm (4.2 ft)
Next high tide (tomorrow) : 2:21 am (15.9 ft)
Sunset today : 10:13 pm
Sunrise tomorrow : 3:55 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - May 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:1015.76:2013.411:50-0.55:038:51First Quarter1Fri
2Sat6:0614.17:2912.612:144.412:491.05:018:54First Quarter2Sat
3Sun7:1512.78:4512.31:275.21:582.14:588:56First Quarter3Sun
4Mon8:3712.09:5312.72:485.23:102.74:568:58First Quarter4Mon
5Tue9:5412.010:4613.34:024.64:152.74:539:01Waxing Gibbous5Tue
6Wed10:5712.411:2714.05:013.55:082.54:519:03Waxing Gibbous6Wed
7Thu11:4713.05:472.35:522.24:499:05Waxing Gibbous7Thu
8Fri12:0214.712:3013.66:261.16:312.04:469:08Waxing Gibbous8Fri
9Sat12:3415.41:0914.17:010.27:061.84:449:10Full Moon9Sat
10Sun1:0415.91:4514.47:34-0.67:401.94:429:12Full Moon10Sun
11Mon1:3516.32:2114.68:05-1.18:132.04:399:14Full Moon11Mon
12Tue2:0616.52:5514.58:37-1.48:462.44:379:16Full Moon12Tue
13Wed2:3716.53:3014.39:09-1.49:192.84:359:19Waning Gibbous13Wed
14Thu3:1116.34:0713.99:43-1.39:553.44:339:21Waning Gibbous14Thu
15Fri3:4615.84:4713.410:21-0.910:364.04:309:23Waning Gibbous15Fri
16Sat4:2615.25:3412.911:04-0.311:254.64:289:25Waning Gibbous16Sat
17Sun5:1414.36:3112.611:540.44:269:27Third Quarter17Sun
18Mon6:1313.57:3912.712:274.912:541.14:249:29Third Quarter18Mon
19Tue7:2712.98:4813.31:424.82:031.54:229:32Third Quarter19Tue
20Wed8:4912.89:5014.33:003.93:141.64:209:34Third Quarter20Wed
21Thu10:0613.310:4415.64:102.34:201.34:189:36Waning Crescent21Thu
22Fri11:1214.211:3316.95:100.45:190.94:169:38Waning Crescent22Fri
23Sat12:1115.16:02-1.56:110.54:159:40Waning Crescent23Sat
24Sun12:1918.01:0515.96:51-3.07:010.34:139:42New Moon24Sun
25Mon1:0418.71:5516.37:38-4.07:480.44:119:44New Moon25Mon
26Tue1:4918.92:4416.48:23-4.48:340.84:109:45New Moon26Tue
27Wed2:3318.73:3216.19:07-4.29:211.44:089:47Waxing Crescent27Wed
28Thu3:1718.04:1915.59:52-3.410:082.24:069:49Waxing Crescent28Thu
29Fri4:0216.95:0614.710:38-2.310:583.24:059:51Waxing Crescent29Fri
30Sat4:4815.55:5713.911:25-0.911:524.04:039:53Waxing Crescent30Sat
31Sun5:3914.06:5213.212:160.64:029:54First Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9452391)

Common Questions About William Henry Bay, AK Tides

Show All
What time does the tide turn (slack tide) in William Henry Bay, AK today?

Slack tide in William Henry Bay, AK is approximately 11:29 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 99% 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 Full Moon (99% 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