Tides Today & Tomorrow in Port Alexander, Baranof Island, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Port Alexander, Baranof Island, AK.
Next low tide : 12:26 pm (4.6 ft)
Next high tide : in 5h 19m at 7:31 am (6.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:39 am
Moon phase : First Quarter (57% illuminated)
Tide Station Location : Station #9451054
Common Questions About Tides

Port Alexander, Baranof Island, AK Tides - Aug 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:137.17:2410.91:320.41:004.53:017:08Waxing Gibbous1Tue
2Wed9:297.88:3411.42:43-0.42:254.33:037:06Waxing Gibbous2Wed
3Thu10:258.79:3812.03:44-1.33:343.73:047:04Waxing Gibbous3Thu
4Fri11:109.510:3412.44:35-2.04:322.83:067:02Full Moon4Fri
5Sat11:5210.211:2512.65:21-2.55:232.03:087:00Full Moon5Sat
6Sun12:3010.76:04-2.66:111.23:106:57Full Moon6Sun
7Mon12:1212.31:0711.06:43-2.36:570.73:126:55Waning Gibbous7Mon
8Tue12:5811.71:4311.17:20-1.77:420.53:146:53Waning Gibbous8Tue
9Wed1:4210.82:1811.07:56-0.78:270.63:166:51Waning Gibbous9Wed
10Thu2:279.72:5310.88:300.59:140.93:186:49Waning Gibbous10Thu
11Fri3:158.63:3010.39:041.810:051.33:206:46Third Quarter11Fri
12Sat4:107.54:119.89:413.111:051.83:226:44Third Quarter12Sat
13Sun5:206.75:009.310:254.23:246:42Third Quarter13Sun
14Mon6:596.46:059.012:182.011:32 AM5.13:266:39Third Quarter14Mon
15Tue8:436.77:209.01:381.91:105.43:286:37Waning Crescent15Tue
16Wed9:457.38:279.42:461.52:315.23:306:35Waning Crescent16Wed
17Thu10:237.99:219.93:360.83:284.63:326:32Waning Crescent17Thu
18Fri10:548.510:0510.44:170.24:113.93:346:30Waning Crescent18Fri
19Sat11:229.010:4510.84:51-0.44:493.13:366:27New Moon19Sat
20Sun11:489.611:2211.15:22-0.85:252.43:386:25New Moon20Sun
21Mon12:1510.15:52-1.16:001.73:406:22New Moon21Mon
22Tue12:4110.56:21-1.06:351.03:426:20New Moon22Tue
23Wed12:3610.91:0910.96:51-0.77:120.53:446:17Waxing Crescent23Wed
24Thu1:1510.51:3811.27:210.07:520.33:466:15Waxing Crescent24Thu
25Fri1:579.82:1011.37:520.88:360.23:486:12Waxing Crescent25Fri
26Sat2:449.02:4811.28:261.99:280.43:506:10First Quarter26Sat
27Sun3:408.13:3310.99:063.010:310.73:526:07First Quarter27Sun
28Mon4:557.34:3210.69:594.111:510.93:546:05First Quarter28Mon
29Tue6:367.05:5010.311:214.93:566:02First Quarter29Tue
30Wed8:147.57:1710.41:180.71:064.93:585:59Waxing Gibbous30Wed
31Thu9:208.38:3310.92:330.02:324.24:005:57Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451054)

Common Questions About Port Alexander, Baranof Island, AK Tides

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

Slack tide in Port Alexander, Baranof Island, AK is approximately 9:58 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 Alexander, Baranof Island, AK?

Port Alexander, Baranof Island, AK is currently in a neap phase. Tonight's moon is 57% 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 minimum.

What datum are Port Alexander, Baranof 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 Alexander, Baranof Island, AK?

Tide predictions for Port Alexander, Baranof 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 Alexander, Baranof Island, AK?

Tide data for Port Alexander, Baranof Island, AK is sourced from NOAA Station #9451054. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451054.

What is the moon phase in Port Alexander, Baranof Island, AK tonight?

Tonight the moon over Port Alexander, Baranof Island, AK is First Quarter (57% illuminated). This places Port Alexander, Baranof Island, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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