Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 3:16 pm (6.4 ft)
Next high tide : in 5h 05m at 9:54 am (10.0 ft)
Sunset today : 9:42 pm
Sunrise tomorrow : 4:32 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - May 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:0215.35:52-1.95:581.14:037:52New Moon1Tue
2Wed12:4815.96:34-3.36:411.04:017:54New Moon2Wed
3Thu12:4018.71:3516.07:17-4.17:251.23:587:56New Moon3Thu
4Fri1:2318.92:2315.88:01-4.38:101.73:567:58Waxing Crescent4Fri
5Sat2:0818.63:1315.38:48-3.98:592.43:538:01Waxing Crescent5Sat
6Sun2:5617.84:0614.69:37-2.99:533.23:518:03Waxing Crescent6Sun
7Mon3:4916.55:0513.910:32-1.610:553.93:488:05First Quarter7Mon
8Tue4:4915.06:1213.411:32-0.33:468:08First Quarter8Tue
9Wed6:0113.67:2213.412:084.312:380.93:448:10First Quarter9Wed
10Thu7:2312.78:2713.91:284.01:481.73:418:12First Quarter10Thu
11Fri8:4312.59:2114.52:433.12:532.13:398:14Waxing Gibbous11Fri
12Sat9:5112.810:0715.13:461.93:502.33:378:17Waxing Gibbous12Sat
13Sun10:4813.210:4715.74:370.74:402.53:358:19Waxing Gibbous13Sun
14Mon11:3713.611:2316.15:21-0.35:242.63:328:21Waxing Gibbous14Mon
15Tue12:2113.96:01-1.06:042.83:308:23Full Moon15Tue
16Wed1:0014.06:37-1.46:423.03:288:25Full Moon16Wed
17Thu12:3116.41:3714.07:11-1.57:183.33:268:27Full Moon17Thu
18Fri1:0416.32:1213.87:45-1.47:533.63:248:30Full Moon18Fri
19Sat1:3816.02:4713.58:18-1.08:284.03:228:32Waning Gibbous19Sat
20Sun2:1315.63:2313.18:52-0.69:044.53:208:34Waning Gibbous20Sun
21Mon2:5015.04:0112.69:280.09:444.93:188:36Waning Gibbous21Mon
22Tue3:2914.24:4312.310:070.710:305.33:168:38Waning Gibbous22Tue
23Wed4:1413.35:3112.110:501.411:265.43:158:40Third Quarter23Wed
24Thu5:0712.46:2512.211:402.13:138:42Third Quarter24Thu
25Fri6:1311.77:2212.712:335.112:372.73:118:44Third Quarter25Fri
26Sat7:2911.48:1613.61:434.31:413.13:098:45Third Quarter26Sat
27Sun8:4311.79:0614.72:482.92:453.33:088:47Waning Crescent27Sun
28Mon9:5112.59:5515.93:461.23:453.13:068:49Waning Crescent28Mon
29Tue10:5113.410:4217.14:38-0.64:402.93:058:51Waning Crescent29Tue
30Wed11:4614.311:3018.15:28-2.35:322.53:038:53New Moon30Wed
31Thu12:3815.16:15-3.66:222.13:028:54New Moon31Thu
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 12:35 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 transitional phase. Tonight's moon is 72% 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 Waxing Gibbous (72% 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