Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in William Henry Bay, AK.
Next low tide : in 4h 37m at 9:10 am (-1.6 ft)
Next high tide : 3:35 pm (15.0 ft)
Sunset today : 9:25 pm
Sunrise tomorrow : 4:49 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Jun 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:0913.54:3611.99:511.110:235.82:007:56Third Quarter1Mon
2Tue4:0312.75:3612.010:441.711:335.61:597:58Third Quarter2Tue
3Wed5:1212.06:3612.611:462.21:587:59Third Quarter3Wed
4Thu6:2911.97:3113.612:474.712:522.41:578:01Third Quarter4Thu
5Fri7:4412.28:2014.91:543.21:562.31:568:02Waning Crescent5Fri
6Sat8:5113.09:0716.22:521.32:542.11:558:03Waning Crescent6Sat
7Sun9:5114.09:5217.43:44-0.73:471.81:548:05Waning Crescent7Sun
8Mon10:4614.810:3818.44:32-2.54:381.61:538:06New Moon8Mon
9Tue11:3915.511:2519.05:20-3.85:271.51:528:07New Moon9Tue
10Wed12:3015.96:06-4.66:161.51:528:08New Moon10Wed
11Thu12:1219.11:2115.96:53-4.87:051.81:518:09Waxing Crescent11Thu
12Fri1:0018.72:1115.77:41-4.47:552.31:518:10Waxing Crescent12Fri
13Sat1:5017.83:0315.28:30-3.48:492.91:508:11Waxing Crescent13Sat
14Sun2:4316.53:5614.69:21-2.19:483.51:508:11Waxing Crescent14Sun
15Mon3:3915.04:5414.110:16-0.610:543.91:508:12First Quarter15Mon
16Tue4:4213.55:5313.811:140.81:498:13First Quarter16Tue
17Wed5:5512.36:5213.812:063.912:162.01:498:13First Quarter17Wed
18Thu7:1311.67:4614.11:173.41:192.91:498:14Waxing Gibbous18Thu
19Fri8:2511.68:3414.42:202.62:183.41:498:14Waxing Gibbous19Fri
20Sat9:2611.99:1514.93:141.63:113.71:508:14Waxing Gibbous20Sat
21Sun10:1812.49:5415.34:000.73:583.91:508:15Waxing Gibbous21Sun
22Mon11:0312.810:3115.64:400.04:413.91:508:15Waxing Gibbous22Mon
23Tue11:4413.311:0715.95:17-0.65:213.91:508:15Full Moon23Tue
24Wed12:2113.55:52-1.05:583.91:518:15Full Moon24Wed
25Thu12:5713.76:26-1.26:343.91:518:15Full Moon25Thu
26Fri12:1916.11:3113.76:59-1.37:093.91:528:15Full Moon26Fri
27Sat12:5515.92:0613.67:33-1.27:454.11:538:14Waning Gibbous27Sat
28Sun1:3115.52:4113.58:08-0.98:244.21:538:14Waning Gibbous28Sun
29Mon2:0915.03:1913.38:45-0.59:074.31:548:13Waning Gibbous29Mon
30Tue2:5114.24:0013.39:250.19:574.31:558:13Waning Gibbous30Tue
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 12:22 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 95% 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 Gibbous (95% 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