Tides Today & Tomorrow in Port Protection, Prince of Wales Island, AK

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Port Protection, Prince of Wales Island, AK.
Next low tide : 10:46 am (2.3 ft)
Next high tide : in 39m at 5:06 am (10.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:31 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9451095
Common Questions About Tides

Port Protection, Prince of Wales Island, AK Tides - Apr 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:3910.48:5810.51:553.92:231.14:235:32Waxing Gibbous1Wed
2Thu8:4310.69:3411.02:543.03:091.14:205:35Waxing Gibbous2Thu
3Fri9:3410.910:0411.53:382.23:471.04:185:37Waxing Gibbous3Fri
4Sat10:1611.110:3111.94:151.44:191.14:155:39Full Moon4Sat
5Sun10:5411.210:5712.24:480.74:491.34:125:41Full Moon5Sun
6Mon11:2911.311:2212.45:200.25:181.64:105:43Full Moon6Mon
7Tue12:0311.35:51-0.25:471.94:075:45Full Moon7Tue
8Wed12:3811.16:22-0.46:162.34:055:47Full Moon8Wed
9Thu12:1512.61:1410.86:55-0.46:452.84:025:49Waning Gibbous9Thu
10Fri12:4312.41:5210.47:30-0.27:163.23:595:51Waning Gibbous10Fri
11Sat1:1412.22:3610.08:080.07:503.73:575:53Waning Gibbous11Sat
12Sun1:5011.93:289.58:530.48:324.13:545:55Waning Gibbous12Sun
13Mon2:3411.44:339.39:470.79:314.53:525:57Third Quarter13Mon
14Tue3:3310.95:479.310:531.010:584.53:495:59Third Quarter14Tue
15Wed4:5210.56:549.812:051.03:466:01Third Quarter15Wed
16Thu6:2110.47:4810.612:343.91:110.83:446:03Waning Crescent16Thu
17Fri7:4110.78:3411.51:492.72:080.63:416:05Waning Crescent17Fri
18Sat8:4811.29:1512.52:471.32:580.53:396:07Waning Crescent18Sat
19Sun9:4711.79:5613.43:38-0.13:440.63:366:10Waning Crescent19Sun
20Mon10:4112.110:3614.04:26-1.44:290.83:346:12New Moon20Mon
21Tue11:3112.211:1714.45:13-2.35:131.13:316:14New Moon21Tue
22Wed12:2112.25:59-2.75:571.63:296:16New Moon22Wed
23Thu1:1111.96:45-2.76:422.13:266:18Waxing Crescent23Thu
24Fri12:4214.02:0211.47:33-2.37:302.73:246:20Waxing Crescent24Fri
25Sat1:2813.32:5710.88:22-1.58:213.33:226:22Waxing Crescent25Sat
26Sun2:1812.33:5810.39:16-0.69:223.83:196:24First Quarter26Sun
27Mon3:1511.35:0510.010:150.210:384.13:176:26First Quarter27Mon
28Tue4:2410.36:1310.011:201.03:156:28First Quarter28Tue
29Wed5:449.77:1310.212:083.912:271.43:126:30First Quarter29Wed
30Thu7:069.48:0110.61:263.21:271.73:106:32Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451095)

Common Questions About Port Protection, Prince of Wales Island, AK Tides

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What time does the tide turn (slack tide) in Port Protection, Prince of Wales Island, AK today?

Slack tide in Port Protection, Prince of Wales Island, AK is approximately 7:56 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 Protection, Prince of Wales Island, AK?

Port Protection, Prince of Wales 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 Protection, Prince of Wales 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 Protection, Prince of Wales Island, AK?

Tide predictions for Port Protection, Prince of Wales 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 Protection, Prince of Wales Island, AK?

Tide data for Port Protection, Prince of Wales Island, AK is sourced from NOAA Station #9451095. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451095.

What is the moon phase in Port Protection, Prince of Wales Island, AK tonight?

Tonight the moon over Port Protection, Prince of Wales Island, AK is First Quarter (38% illuminated). This places Port Protection, Prince of Wales 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