Tides Today & Tomorrow in Port Beauclerc, Kuiu Island, AK

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Port Beauclerc, Kuiu Island, AK.
Next low tide : in 6h 14m at 11:52 pm (1.2 ft)
Next high tide (tomorrow) : 6:05 am (8.6 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:32 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9451082
Common Questions About Tides

Port Beauclerc, Kuiu Island, AK Tides - May 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:4110.87:379.812:45-0.35:088:36First Quarter1Fri
2Sat7:0210.18:4210.21:173.71:540.35:068:38First Quarter2Sat
3Sun8:299.69:3710.72:472.92:590.75:048:40Waxing Gibbous3Sun
4Mon9:499.610:2311.33:581.83:571.05:028:42Waxing Gibbous4Mon
5Tue10:569.811:0411.84:550.74:471.35:008:44Waxing Gibbous5Tue
6Wed11:5310.011:4112.25:42-0.35:311.74:578:46Waxing Gibbous6Wed
7Thu12:4210.36:24-1.06:122.14:558:48Full Moon7Thu
8Fri12:1612.41:2610.47:02-1.46:512.54:538:50Full Moon8Fri
9Sat12:5012.42:0610.47:39-1.67:282.84:518:52Full Moon9Sat
10Sun1:2312.32:4610.38:16-1.58:043.24:498:54Full Moon10Sun
11Mon1:5612.13:2510.18:52-1.38:403.54:478:56Waning Gibbous11Mon
12Tue2:3011.74:069.89:29-0.99:183.74:458:58Waning Gibbous12Tue
13Wed3:0611.34:509.410:08-0.59:594.04:439:00Waning Gibbous13Wed
14Thu3:4510.75:389.210:500.010:474.24:419:02Waning Gibbous14Thu
15Fri4:2910.06:309.011:350.511:484.24:399:04Third Quarter15Fri
16Sat5:249.37:239.112:251.04:389:06Third Quarter16Sat
17Sun6:338.78:139.41:044.01:201.44:369:08Third Quarter17Sun
18Mon7:538.48:589.92:223.42:161.74:349:10Third Quarter18Mon
19Tue9:128.59:3910.63:272.43:102.04:329:11Waning Crescent19Tue
20Wed10:218.810:1811.34:191.34:002.34:319:13Waning Crescent20Wed
21Thu11:209.310:5712.05:050.14:472.54:299:15Waning Crescent21Thu
22Fri12:129.85:49-1.05:332.64:279:17Waning Crescent22Fri
23Sat1:0110.36:33-1.96:192.74:269:18New Moon23Sat
24Sun12:2013.21:4910.67:18-2.67:062.84:249:20New Moon24Sun
25Mon1:0513.52:3710.78:04-3.07:542.84:239:22New Moon25Mon
26Tue1:5113.53:2610.78:51-3.08:442.94:229:23Waxing Crescent26Tue
27Wed2:4013.14:1710.79:39-2.89:392.94:209:25Waxing Crescent27Wed
28Thu3:3212.55:1010.610:29-2.210:402.94:199:26Waxing Crescent28Thu
29Fri4:2911.56:0510.611:21-1.411:492.94:189:28First Quarter29Fri
30Sat5:3410.57:0110.712:15-0.54:179:29First Quarter30Sat
31Sun6:499.57:5610.91:072.51:130.44:159:31First Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451082)

Common Questions About Port Beauclerc, Kuiu Island, AK Tides

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What time does the tide turn (slack tide) in Port Beauclerc, Kuiu Island, AK today?

Slack tide in Port Beauclerc, Kuiu Island, AK is approximately 2:58 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 Port Beauclerc, Kuiu Island, AK?

Port Beauclerc, Kuiu Island, AK is currently in a transitional phase. Tonight's moon is 38% 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 Port Beauclerc, Kuiu Island, 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 Port Beauclerc, Kuiu Island, AK?

Tide predictions for Port Beauclerc, Kuiu Island, 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 Port Beauclerc, Kuiu Island, AK?

Tide data for Port Beauclerc, Kuiu Island, AK is sourced from NOAA Station #9451082. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451082.

What is the moon phase in Port Beauclerc, Kuiu Island, AK tonight?

Tonight the moon over Port Beauclerc, Kuiu Island, AK is First Quarter (38% illuminated). This places Port Beauclerc, Kuiu Island, 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