Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 1:02 pm (1.1 ft)
Next high tide : in 5h 26m at 6:41 am (13.1 ft)
Sunset today : 10:15 pm
Sunrise tomorrow : 3:50 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Jan 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:2413.96:4810.91:044.48:513:17First Quarter1Sun
2Mon7:1913.78:1310.412:485.22:134.28:513:18First Quarter2Mon
3Tue8:1913.89:3510.71:586.03:193.58:503:19Waxing Gibbous3Tue
4Wed9:1614.210:3811.53:106.34:152.58:503:21Waxing Gibbous4Wed
5Thu10:0814.911:2812.44:126.15:021.48:493:22Waxing Gibbous5Thu
6Fri10:5415.75:025.55:430.38:483:24Waxing Gibbous6Fri
7Sat12:0913.311:37 AM16.45:464.86:20-0.78:483:26Full Moon7Sat
8Sun12:4614.212:1717.16:254.06:56-1.68:473:27Full Moon8Sun
9Mon1:2114.912:5617.57:033.37:30-2.28:463:29Full Moon9Mon
10Tue1:5415.61:3417.67:402.68:05-2.48:453:31Full Moon10Tue
11Wed2:2816.02:1317.48:192.18:41-2.38:443:33Waning Gibbous11Wed
12Thu3:0216.42:5316.88:591.89:18-1.68:423:35Waning Gibbous12Thu
13Fri3:3816.53:3615.99:431.79:58-0.68:413:37Waning Gibbous13Fri
14Sat4:1716.54:2514.510:321.910:430.98:403:39Third Quarter14Sat
15Sun5:0216.25:2513.111:292.111:352.58:393:41Third Quarter15Sun
16Mon5:5515.96:4211.912:372.38:373:43Third Quarter16Mon
17Tue6:5915.78:1811.512:394.01:552.18:363:45Third Quarter17Tue
18Wed8:1115.79:4812.11:574.93:121.38:343:47Waning Crescent18Wed
19Thu9:2316.210:5713.33:185.04:200.18:333:50Waning Crescent19Thu
20Fri10:2616.911:5114.54:284.45:16-1.18:313:52Waning Crescent20Fri
21Sat11:2217.65:263.46:05-2.08:293:54New Moon21Sat
22Sun12:3715.512:1218.16:172.46:48-2.68:273:56New Moon22Sun
23Mon1:1816.212:5718.27:021.67:28-2.88:263:59New Moon23Mon
24Tue1:5516.71:3818.07:441.18:05-2.48:244:01New Moon24Tue
25Wed2:3016.82:1717.38:241.08:40-1.78:224:03Waxing Crescent25Wed
26Thu3:0216.62:5416.39:031.29:14-0.68:204:06Waxing Crescent26Thu
27Fri3:3316.23:3115.19:421.69:470.88:184:08Waxing Crescent27Fri
28Sat4:0415.64:0913.710:222.310:202.38:164:11Waxing Crescent28Sat
29Sun4:3815.04:5212.311:053.110:563.88:144:13First Quarter29Sun
30Mon5:1714.25:4611.011:563.811:395.38:124:16First Quarter30Mon
31Tue6:0613.67:0310.01:024.38:104:18First Quarter31Tue
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 9:51 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places William Henry Bay, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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