Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 2:03 pm (5.3 ft)
Next high tide : in 5h 28m at 8:22 am (10.4 ft)
Sunset today : 9:44 pm
Sunrise tomorrow : 4:30 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Apr 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:5816.35:0312.910:380.110:544.35:286:41Third Quarter1Tue
2Wed4:4714.76:1211.711:351.75:256:43Third Quarter2Wed
3Thu5:4913.27:3911.212:005.512:452.95:226:46Third Quarter3Thu
4Fri7:0912.38:5911.61:236.12:063.45:196:48Third Quarter4Fri
5Sat8:3412.19:5712.32:465.63:193.25:166:50Waning Crescent5Sat
6Sun9:4212.610:3913.23:514.64:132.75:136:53Waning Crescent6Sun
7Mon10:3413.311:1314.14:413.34:562.15:106:55Waning Crescent7Mon
8Tue11:1814.011:4314.95:212.05:321.65:076:57Waning Crescent8Tue
9Wed11:5614.65:560.96:051.35:057:00New Moon9Wed
10Thu12:1115.612:3215.06:29-0.16:361.25:027:02New Moon10Thu
11Fri12:3916.21:0615.27:00-0.87:071.34:597:04New Moon11Fri
12Sat1:0716.61:4015.27:32-1.27:371.64:567:06New Moon12Sat
13Sun1:3616.72:1514.98:04-1.48:092.14:537:09Waxing Crescent13Sun
14Mon2:0716.72:5014.48:38-1.38:422.74:507:11Waxing Crescent14Mon
15Tue2:4016.33:3013.79:16-0.99:203.54:487:13Waxing Crescent15Tue
16Wed3:1815.84:1612.99:59-0.310:054.34:457:16Waxing Crescent16Wed
17Thu4:0415.05:1412.210:500.511:045.04:427:18First Quarter17Thu
18Fri5:0214.06:2812.011:531.34:397:20First Quarter18Fri
19Sat6:2013.37:4912.412:225.31:071.64:377:23First Quarter19Sat
20Sun7:4713.18:5713.61:504.72:221.54:347:25First Quarter20Sun
21Mon9:0713.89:5215.03:073.23:291.04:317:27Waxing Gibbous21Mon
22Tue10:1414.710:4016.44:101.24:250.34:287:30Waxing Gibbous22Tue
23Wed11:1115.611:2417.75:02-0.75:16-0.24:267:32Waxing Gibbous23Wed
24Thu12:0316.35:50-2.46:02-0.34:237:34Full Moon24Thu
25Fri12:0618.512:5216.66:35-3.56:47-0.24:207:37Full Moon25Fri
26Sat12:4718.91:3816.67:18-3.97:300.34:187:39Full Moon26Sat
27Sun1:2818.72:2316.18:01-3.78:141.14:157:41Waning Gibbous27Sun
28Mon2:0818.13:0815.38:43-2.98:572.14:127:44Waning Gibbous28Mon
29Tue2:5017.13:5414.39:27-1.79:433.24:107:46Waning Gibbous29Tue
30Wed3:3315.84:4413.210:12-0.310:354.34:077:48Waning Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9452391)

Common Questions About William Henry Bay, AK Tides

Show All
What time does the tide turn (slack tide) in William Henry Bay, AK today?

Slack tide in William Henry Bay, AK is approximately 11:12 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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