Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide : in 5h 58m at 10:46 pm (0.1 ft)
Next high tide (tomorrow) : 4:46 am (14.7 ft)
Sunset today : 8:45 pm
Sunrise tomorrow : 5:24 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Dec 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:3913.98:2111.61:154.62:223.87:252:14Waning Crescent1Sat
2Sun8:2314.89:1912.32:124.73:102.37:272:13Waning Crescent2Sun
3Mon9:0515.910:1113.23:044.63:530.87:292:12Waning Crescent3Mon
4Tue9:4616.910:5814.03:524.44:35-0.77:302:11Waning Crescent4Tue
5Wed10:2817.711:4314.74:374.15:16-1.87:322:10New Moon5Wed
6Thu11:1118.45:213.85:58-2.77:342:09New Moon6Thu
7Fri12:2815.211:55 AM18.86:053.56:40-3.27:352:08New Moon7Fri
8Sat1:1215.412:4118.86:503.37:24-3.27:372:08Waxing Crescent8Sat
9Sun1:5815.51:2918.37:383.38:10-2.77:382:07Waxing Crescent9Sun
10Mon2:4515.42:1917.38:293.48:58-1.87:402:07Waxing Crescent10Mon
11Tue3:3415.23:1415.99:263.69:49-0.57:412:06First Quarter11Tue
12Wed4:2815.14:1714.410:313.710:450.97:422:06First Quarter12Wed
13Thu5:2515.15:3113.011:423.411:462.47:442:06First Quarter13Thu
14Fri6:2515.36:5412.312:552.87:452:05First Quarter14Fri
15Sat7:2315.78:1612.212:533.52:041.87:462:05Waxing Gibbous15Sat
16Sun8:1816.19:2712.72:004.33:050.77:472:05Waxing Gibbous16Sun
17Mon9:0916.510:2513.43:034.73:57-0.37:482:05Waxing Gibbous17Mon
18Tue9:5616.911:1514.03:584.74:44-1.07:492:05Waxing Gibbous18Tue
19Wed10:4017.111:5914.44:474.65:26-1.47:492:06Full Moon19Wed
20Thu11:2117.25:314.56:05-1.67:502:06Full Moon20Thu
21Fri12:3814.612:0017.16:124.36:42-1.57:512:06Full Moon21Fri
22Sat1:1314.712:3716.86:504.37:17-1.37:512:07Waning Gibbous22Sat
23Sun1:4714.61:1316.37:274.37:51-0.87:522:08Waning Gibbous23Sun
24Mon2:1914.41:4915.68:044.48:25-0.17:522:08Waning Gibbous24Mon
25Tue2:5114.22:2614.78:414.68:580.77:522:09Waning Gibbous25Tue
26Wed3:2514.03:0513.69:224.89:331.77:522:10Waning Gibbous26Wed
27Thu4:0113.83:5112.410:085.010:112.97:522:11Third Quarter27Thu
28Fri4:4213.74:4711.411:035.010:574.17:532:12Third Quarter28Fri
29Sat5:2913.86:0110.612:084.77:522:13Third Quarter29Sat
30Sun6:2314.07:2810.51:183.97:522:14Third Quarter30Sun
31Mon7:2114.68:5111.21:035.92:242.77:522:15Waning Crescent31Mon
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 1:46 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 20% 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 (20% 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