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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Port Protection, Prince of Wales Island, AK.
Next low tide : in 1h 50m at 10:46 am (2.3 ft)
Next high tide : 5:06 pm (11.7 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 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:4512.04:5210.010:310.610:183.46:237:33Waning Gibbous1Sat
2Sun4:2211.65:469.611:170.911:033.96:207:35Third Quarter2Sun
3Mon5:1011.26:559.312:161.26:177:37Third Quarter3Mon
4Tue6:1410.88:139.412:074.31:271.36:157:39Third Quarter4Tue
5Wed7:3510.69:2310.01:374.32:421.26:127:41Third Quarter5Wed
6Thu8:5910.710:1810.83:063.63:460.86:097:43Waning Crescent6Thu
7Fri10:1211.211:0411.74:152.54:410.36:077:45Waning Crescent7Fri
8Sat11:1411.811:4612.75:111.25:300.06:047:47Waning Crescent8Sat
9Sun12:0912.46:01-0.16:15-0.16:027:49New Moon9Sun
10Mon12:2713.51:0012.76:49-1.26:590.05:597:51New Moon10Mon
11Tue1:0714.11:4912.87:35-1.97:420.35:567:53New Moon11Tue
12Wed1:4814.42:3812.68:21-2.38:260.85:547:55Waxing Crescent12Wed
13Thu2:3014.33:2812.29:08-2.29:111.55:517:57Waxing Crescent13Thu
14Fri3:1313.84:2011.69:56-1.89:582.25:498:00Waxing Crescent14Fri
15Sat4:0013.15:1710.910:47-1.010:503.05:468:02Waxing Crescent15Sat
16Sun4:5112.16:2110.411:43-0.211:533.65:448:04First Quarter16Sun
17Mon5:5111.17:3310.112:470.75:418:06First Quarter17Mon
18Tue7:0410.38:4610.11:153.91:581.25:398:08First Quarter18Tue
19Wed8:279.99:4810.42:443.73:071.55:368:10First Quarter19Wed
20Thu9:439.910:3510.73:573.14:061.65:348:12Waxing Gibbous20Thu
21Fri10:4510.111:1311.24:512.34:531.65:318:14Waxing Gibbous21Fri
22Sat11:3510.411:4611.65:341.55:321.65:298:16Waxing Gibbous22Sat
23Sun12:1710.76:100.86:071.75:268:18Waxing Gibbous23Sun
24Mon12:1611.912:5410.96:440.26:401.85:248:20Full Moon24Mon
25Tue12:4412.21:3011.17:16-0.27:122.05:218:22Full Moon25Tue
26Wed1:1312.42:0511.17:48-0.67:432.25:198:24Full Moon26Wed
27Thu1:4212.52:4111.08:21-0.78:152.55:178:26Full Moon27Thu
28Fri2:1212.53:1810.88:55-0.88:482.85:148:28Waning Gibbous28Fri
29Sat2:4312.33:5810.69:31-0.69:243.15:128:31Waning Gibbous29Sat
30Sun3:1812.04:4210.310:10-0.410:053.45:108:33Waning Gibbous30Sun
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 1:56 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 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