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 2h 15m at 9:26 pm (2.0 ft)
Next high tide (tomorrow) : 3:16 am (16.1 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 - May 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:1812.57:5212.612:295.61:012.23:056:50First Quarter1Wed
2Thu7:4212.38:4913.31:505.02:102.33:026:53Waxing Gibbous2Thu
3Fri8:4912.79:3214.02:553.83:062.03:006:55Waxing Gibbous3Fri
4Sat9:4213.310:0714.73:442.53:511.72:576:57Waxing Gibbous4Sat
5Sun10:2613.810:3815.34:241.34:301.52:556:59Waxing Gibbous5Sun
6Mon11:0614.211:0615.85:000.35:051.52:527:02Full Moon6Mon
7Tue11:4214.511:3416.25:32-0.45:381.62:507:04Full Moon7Tue
8Wed12:1614.66:04-1.06:101.92:477:06Full Moon8Wed
9Thu12:0316.412:5014.56:34-1.26:412.42:457:09Full Moon9Thu
10Fri12:3216.41:2414.27:05-1.27:133.02:437:11Waning Gibbous10Fri
11Sat1:0316.11:5913.77:37-1.07:463.72:407:13Waning Gibbous11Sat
12Sun1:3615.72:3713.18:12-0.68:224.42:387:15Waning Gibbous12Sun
13Mon2:1215.13:2112.48:510.09:065.12:367:18Waning Gibbous13Mon
14Tue2:5514.34:1611.99:390.710:025.72:347:20Third Quarter14Tue
15Wed3:4913.45:2511.810:361.411:155.82:327:22Third Quarter15Wed
16Thu4:5912.76:3912.311:441.82:297:24Third Quarter16Thu
17Fri6:2212.57:4213.312:385.112:571.72:277:26Third Quarter17Fri
18Sat7:4113.08:3514.71:523.62:041.32:257:28Waning Crescent18Sat
19Sun8:4913.99:2116.22:531.73:030.82:237:30Waning Crescent19Sun
20Mon9:4914.910:0517.53:46-0.43:550.42:217:33Waning Crescent20Mon
21Tue10:4415.710:4918.54:35-2.34:440.12:197:35New Moon21Tue
22Wed11:3616.311:3219.15:22-3.85:310.22:177:37New Moon22Wed
23Thu12:2616.56:07-4.66:170.52:167:39New Moon23Thu
24Fri12:1619.11:1516.36:52-4.77:031.22:147:41Waxing Crescent24Fri
25Sat1:0118.72:0415.77:38-4.17:512.12:127:42Waxing Crescent25Sat
26Sun1:4617.72:5514.98:25-3.08:423.12:107:44Waxing Crescent26Sun
27Mon2:3416.33:4914.09:15-1.69:384.12:097:46Waxing Crescent27Mon
28Tue3:2714.84:4813.210:09-0.110:434.82:077:48First Quarter28Tue
29Wed4:2713.35:5312.811:091.211:565.02:067:50First Quarter29Wed
30Thu5:3912.16:5712.812:132.22:047:52First Quarter30Thu
31Fri6:5811.57:5313.21:114.61:182.82:037:53First Quarter31Fri
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 12:21 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 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