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 3h 43m 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 - Jul 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:299.310:4212.25:020.14:333.54:119:45Waxing Gibbous1Fri
2Sat12:179.95:47-0.75:273.34:129:45Waxing Gibbous2Sat
3Sun1:0010.56:31-1.56:172.94:139:44Full Moon3Sun
4Mon12:1713.31:4211.17:13-2.27:052.54:149:43Full Moon4Mon
5Tue1:0313.52:2311.67:55-2.67:542.04:159:43Full Moon5Tue
6Wed1:5013.53:0411.98:37-2.68:431.64:169:42Waning Gibbous6Wed
7Thu2:3813.23:4612.29:19-2.49:351.44:179:41Waning Gibbous7Thu
8Fri3:2812.64:3012.410:01-1.810:291.24:189:40Waning Gibbous8Fri
9Sat4:2211.75:1612.410:45-0.911:291.14:209:39Third Quarter9Sat
10Sun5:2210.76:0612.311:320.24:219:38Third Quarter10Sun
11Mon6:319.87:0012.212:351.112:251.44:229:37Third Quarter11Mon
12Tue7:529.27:5912.11:490.91:262.44:249:36Third Quarter12Tue
13Wed9:209.09:0112.13:040.62:383.14:259:35Waning Crescent13Wed
14Thu10:409.310:0212.24:120.13:503.54:279:33Waning Crescent14Thu
15Fri11:439.810:5812.35:10-0.44:543.54:289:32Waning Crescent15Fri
16Sat12:3210.35:58-0.95:493.34:309:31Waning Crescent16Sat
17Sun1:1210.66:41-1.16:353.04:319:29New Moon17Sun
18Mon12:3112.51:4810.97:19-1.37:172.74:339:28New Moon18Mon
19Tue1:1112.52:2111.17:54-1.37:562.44:349:26New Moon19Tue
20Wed1:4812.32:5211.28:27-1.18:332.24:369:25New Moon20Wed
21Thu2:2412.03:2211.38:58-0.89:102.14:389:23Waxing Crescent21Thu
22Fri3:0011.53:5311.39:28-0.49:482.14:409:21Waxing Crescent22Fri
23Sat3:3711.04:2411.29:590.210:272.14:419:20Waxing Crescent23Sat
24Sun4:1710.34:5711.110:290.911:122.24:439:18Waxing Crescent24Sun
25Mon5:019.65:3311.111:021.74:459:16First Quarter25Mon
26Tue5:569.06:1611.012:042.211:40 AM2.54:479:14First Quarter26Tue
27Wed7:078.57:0711.01:082.212:283.34:489:13First Quarter27Wed
28Thu8:348.38:0811.22:211.91:353.84:509:11First Quarter28Thu
29Fri9:588.79:1311.63:311.22:544.04:529:09Waxing Gibbous29Fri
30Sat11:029.310:1412.14:310.44:063.84:549:07Waxing Gibbous30Sat
31Sun11:5210.111:1012.85:22-0.55:073.24:569:05Waxing Gibbous31Sun
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