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 : 11:53 pm (1.3 ft)
Next high tide : in 45m at 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 - Jan 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:3412.79:3510.01:164.82:560.57:272:28Waning Crescent1Tue
2Wed8:2813.310:2410.82:224.83:45-0.57:272:29Waning Crescent2Wed
3Thu9:2113.911:0711.43:214.64:30-1.47:272:30New Moon3Thu
4Fri10:1114.411:4812.04:144.15:14-2.17:262:31New Moon4Fri
5Sat11:0114.75:053.65:57-2.47:262:33New Moon5Sat
6Sun12:2912.411:49 AM14.65:553.06:40-2.47:252:34Waxing Crescent6Sun
7Mon1:1012.812:3814.16:462.57:21-2.07:252:36Waxing Crescent7Mon
8Tue1:5113.01:2913.37:382.28:03-1.27:242:37Waxing Crescent8Tue
9Wed2:3313.22:2412.28:342.08:45-0.17:232:39Waxing Crescent9Wed
10Thu3:1813.23:2411.19:341.99:291.27:222:40First Quarter10Thu
11Fri4:0513.04:3610.010:411.810:182.67:222:42First Quarter11Fri
12Sat4:5612.86:039.311:571.611:173.87:212:44First Quarter12Sat
13Sun5:5312.67:429.31:141.37:202:46Waxing Gibbous13Sun
14Mon6:5512.59:069.712:324.72:220.87:192:47Waxing Gibbous14Mon
15Tue7:5812.510:0510.31:515.03:180.37:172:49Waxing Gibbous15Tue
16Wed8:5412.710:4910.82:595.04:05-0.17:162:51Waxing Gibbous16Wed
17Thu9:4412.811:2411.13:534.74:45-0.47:152:53Full Moon17Thu
18Fri10:2613.011:5511.44:374.35:21-0.67:142:55Full Moon18Fri
19Sat11:0513.05:163.95:53-0.77:122:57Full Moon19Sat
20Sun12:2411.611:40 AM12.95:523.56:23-0.67:112:59Full Moon20Sun
21Mon12:5111.812:1512.66:283.26:52-0.47:103:01Waning Gibbous21Mon
22Tue1:1911.912:4912.27:022.97:190.07:083:03Waning Gibbous22Tue
23Wed1:4512.01:2411.67:382.87:460.67:073:05Waning Gibbous23Wed
24Thu2:1312.02:0210.98:162.78:141.47:053:07Waning Gibbous24Thu
25Fri2:4112.02:4510.28:582.68:422.27:033:09Third Quarter25Fri
26Sat3:1312.03:389.59:482.69:143.17:023:11Third Quarter26Sat
27Sun3:5112.04:518.910:502.59:564.07:003:13Third Quarter27Sun
28Mon4:3912.06:298.612:072.26:583:16Third Quarter28Mon
29Tue5:4212.08:109.01:251.56:563:18Waning Crescent29Tue
30Wed6:5412.39:189.812:315.22:310.66:553:20Waning Crescent30Wed
31Thu8:0412.910:0610.61:595.03:25-0.56:533:22Waning Crescent31Thu
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 8:29 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