Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 6:18 pm (3.8 ft)
Next high tide : in 24m at 12:43 pm (13.8 ft)
Sunset today : 9:01 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Mar 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:3515.16:3211.712:191.96:555:30First Quarter1Wed
2Thu6:3814.08:0911.012:265.01:332.76:525:33First Quarter2Thu
3Fri7:5513.39:4211.31:496.22:552.86:505:35Waxing Gibbous3Fri
4Sat9:1413.410:4712.23:156.24:052.36:475:38Waxing Gibbous4Sat
5Sun10:1713.911:3213.14:245.54:591.56:445:40Waxing Gibbous5Sun
6Mon11:0714.75:144.55:410.76:415:42Waxing Gibbous6Mon
7Tue12:0813.911:49 AM15.45:553.46:170.06:385:45Waxing Gibbous7Tue
8Wed12:3814.612:2515.96:312.56:49-0.56:365:47Full Moon8Wed
9Thu1:0615.212:5916.27:031.77:19-0.76:335:49Full Moon9Thu
10Fri1:3215.71:3116.37:341.17:48-0.76:305:52Full Moon10Fri
11Sat1:5716.02:0316.08:030.78:16-0.36:275:54Full Moon11Sat
12Sun2:2316.12:3415.58:330.58:450.46:245:56Waning Gibbous12Sun
13Mon2:5016.13:0614.89:040.69:141.36:215:59Waning Gibbous13Mon
14Tue3:1815.83:4213.99:390.89:472.46:186:01Waning Gibbous14Tue
15Wed3:5115.44:2312.810:191.310:263.76:156:03Waning Gibbous15Wed
16Thu4:3114.95:1911.611:091.911:165.06:136:06Third Quarter16Thu
17Fri5:2414.26:4310.812:142.56:106:08Third Quarter17Fri
18Sat6:3713.78:3011.112:306.01:382.56:076:10Third Quarter18Sat
19Sun8:0413.99:5012.32:066.13:021.76:046:13Waning Crescent19Sun
20Mon9:2414.810:4713.93:315.04:110.36:016:15Waning Crescent20Mon
21Tue10:2916.111:3315.54:353.25:06-1.25:586:17Waning Crescent21Tue
22Wed11:2517.45:281.25:53-2.35:556:19Waning Crescent22Wed
23Thu12:1516.912:1618.36:16-0.66:37-3.05:526:22New Moon23Thu
24Fri12:5418.11:0318.67:01-2.17:19-3.05:496:24New Moon24Fri
25Sat1:3318.71:4918.47:44-2.98:00-2.45:466:26New Moon25Sat
26Sun2:1118.92:3417.68:27-3.08:41-1.35:446:29Waxing Crescent26Sun
27Mon2:4818.43:1916.49:11-2.59:220.35:416:31Waxing Crescent27Mon
28Tue3:2717.54:0614.89:56-1.410:052.25:386:33Waxing Crescent28Tue
29Wed4:0816.24:5913.210:450.010:544.05:356:35First Quarter29Wed
30Thu4:5414.76:0511.811:411.511:565.65:326:38First Quarter30Thu
31Fri5:5313.37:3611.012:502.75:296:40First Quarter31Fri
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 3:30 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 5% 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 Waning Crescent (5% 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