Tides Today & Tomorrow in William Henry Bay, AK

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in William Henry Bay, AK.
Next low tide : 5:16 pm (5.2 ft)
Next high tide : in 2h 28m at 11:49 am (12.4 ft)
Sunset today : 9:03 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9452391
Common Questions About Tides

William Henry Bay, AK Tides - Apr 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:3617.45:36-0.75:52-2.04:285:41New Moon1Mon
2Tue12:0317.712:1917.76:16-2.16:29-1.94:255:44New Moon2Tue
3Wed12:3818.51:0217.56:56-3.07:08-1.24:225:46Waxing Crescent3Wed
4Thu1:1418.71:4716.77:38-3.37:48-0.14:195:48Waxing Crescent4Thu
5Fri1:5218.42:3515.68:23-2.88:311.54:165:50Waxing Crescent5Fri
6Sat2:3417.63:2914.19:12-1.89:203.24:135:53Waxing Crescent6Sat
7Sun3:2216.34:3512.610:09-0.410:214.94:105:55First Quarter7Sun
8Mon4:2214.86:0511.811:191.011:456.04:075:57First Quarter8Mon
9Tue5:4313.67:4212.012:421.74:056:00First Quarter9Tue
10Wed7:1713.28:5412.91:215.92:041.64:026:02Waxing Gibbous10Wed
11Thu8:3713.79:4514.02:414.83:091.03:596:04Waxing Gibbous11Thu
12Fri9:3814.410:2514.93:403.33:590.43:566:07Waxing Gibbous12Fri
13Sat10:2715.010:5915.74:271.84:410.03:536:09Waxing Gibbous13Sat
14Sun11:0915.411:2816.25:060.55:17-0.13:506:11Full Moon14Sun
15Mon11:4615.611:5516.55:41-0.45:500.13:486:13Full Moon15Mon
16Tue12:2115.56:14-0.96:220.63:456:16Full Moon16Tue
17Wed12:2216.612:5415.26:45-1.26:521.33:426:18Full Moon17Wed
18Thu12:4816.51:2714.67:15-1.07:222.23:396:20Waning Gibbous18Thu
19Fri1:1516.21:5913.97:45-0.67:523.23:366:23Waning Gibbous19Fri
20Sat1:4415.72:3413.08:170.08:234.33:346:25Waning Gibbous20Sat
21Sun2:1514.93:1412.08:520.98:585.43:316:27Waning Gibbous21Sun
22Mon2:5214.04:0611.19:351.89:456.43:286:30Third Quarter22Mon
23Tue3:3913.05:2210.510:302.710:557.13:266:32Third Quarter23Tue
24Wed4:4612.26:5710.611:443.13:236:34Third Quarter24Wed
25Thu6:1311.98:0711.612:337.01:072.93:206:37Third Quarter25Thu
26Fri7:3612.48:5512.91:565.82:162.13:186:39Waning Crescent26Fri
27Sat8:4213.59:3514.52:564.03:101.13:156:41Waning Crescent27Sat
28Sun9:3814.710:1216.03:451.83:570.23:126:44Waning Crescent28Sun
29Mon10:2915.710:4917.44:29-0.34:40-0.43:106:46Waning Crescent29Mon
30Tue11:1716.511:2718.45:11-2.25:22-0.73:076:48New Moon30Tue
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 2:32 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 12% 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 (12% 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