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 23m 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 - Sep 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:5711.31:0712.06:581.27:290.83:565:51Waxing Crescent1Sun
2Mon1:3310.81:3312.07:241.98:051.03:585:49Waxing Crescent2Mon
3Tue2:1310.22:0311.87:522.78:471.24:005:46Waxing Crescent3Tue
4Wed3:009.62:3811.68:233.49:401.54:025:44First Quarter4Wed
5Thu4:038.93:2611.39:024.110:501.74:045:41First Quarter5Thu
6Fri5:318.64:3411.110:044.84:065:38First Quarter6Fri
7Sat7:108.86:0011.112:161.511:47 AM5.04:085:36First Quarter7Sat
8Sun8:209.57:2311.61:330.91:244.54:105:33Waxing Gibbous8Sun
9Mon9:0710.48:3112.22:320.12:343.44:125:30Waxing Gibbous9Mon
10Tue9:4611.39:2912.83:20-0.63:292.24:145:28Waxing Gibbous10Tue
11Wed10:2312.310:2113.34:04-1.04:180.94:165:25Full Moon11Wed
12Thu10:5913.111:1113.44:45-1.25:05-0.34:185:22Full Moon12Thu
13Fri11:3513.85:24-0.95:51-1.14:205:20Full Moon13Fri
14Sat12:0013.212:1214.16:04-0.36:37-1.54:225:17Waning Gibbous14Sat
15Sun12:4912.812:5114.16:430.57:24-1.54:245:14Waning Gibbous15Sun
16Mon1:3912.01:3113.87:231.68:13-1.04:265:12Waning Gibbous16Mon
17Tue2:3311.22:1413.18:062.69:07-0.24:285:09Third Quarter17Tue
18Wed3:3610.33:0412.38:543.710:110.64:305:06Third Quarter18Wed
19Thu4:539.64:0711.49:574.611:281.34:325:04Third Quarter19Thu
20Fri6:269.45:2910.811:315.04:345:01Third Quarter20Fri
21Sat7:499.76:5710.612:521.51:134.74:364:58Waning Crescent21Sat
22Sun8:4510.28:0810.82:011.32:234.04:384:55Waning Crescent22Sun
23Mon9:2410.79:0211.12:521.13:123.24:404:53Waning Crescent23Mon
24Tue9:5411.19:4611.43:310.93:502.44:424:50Waning Crescent24Tue
25Wed10:2011.610:2411.64:040.84:241.64:444:47New Moon25Wed
26Thu10:4512.011:0011.74:340.94:551.04:464:45New Moon26Thu
27Fri11:0912.311:3411.75:011.15:260.54:484:42New Moon27Fri
28Sat11:3312.55:291.45:570.24:504:39New Moon28Sat
29Sun12:0811.611:57 AM12.75:561.96:280.04:524:37Waxing Crescent29Sun
30Mon12:4311.412:2312.76:242.47:020.14:544:34Waxing Crescent30Mon
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