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 3h 27m 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 - Jan 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:2212.84:4810.010:572.110:352.57:272:27First Quarter1Wed
2Thu5:1612.96:189.512:141.67:272:28First Quarter2Thu
3Fri6:1413.07:519.61:280.97:272:30Waxing Gibbous3Fri
4Sat7:1613.29:0910.212:544.22:330.27:262:31Waxing Gibbous4Sat
5Sun8:1613.410:0810.82:084.53:29-0.57:262:32Waxing Gibbous5Sun
6Mon9:1213.610:5511.33:124.44:17-1.07:252:34Full Moon6Mon
7Tue10:0213.711:3611.74:074.15:00-1.37:252:35Full Moon7Tue
8Wed10:4813.74:563.85:40-1.47:242:37Full Moon8Wed
9Thu12:1312.011:30 AM13.65:403.56:17-1.27:232:38Full Moon9Thu
10Fri12:4812.112:1013.26:213.26:51-0.97:232:40Waning Gibbous10Fri
11Sat1:2112.112:4812.67:013.17:23-0.47:222:42Waning Gibbous11Sat
12Sun1:5312.11:2611.97:413.07:540.37:212:43Waning Gibbous12Sun
13Mon2:2412.02:0611.28:223.08:241.17:202:45Waning Gibbous13Mon
14Tue2:5611.92:4910.39:073.08:552.07:192:47Third Quarter14Tue
15Wed3:3011.83:429.59:583.09:282.97:182:49Third Quarter15Wed
16Thu4:0811.64:508.910:593.010:073.87:172:51Third Quarter16Thu
17Fri4:5311.66:218.612:132.87:152:53Third Quarter17Fri
18Sat5:4811.67:598.81:252.27:142:55Waning Crescent18Sat
19Sun6:5011.89:119.412:215.22:261.57:132:56Waning Crescent19Sun
20Mon7:5212.29:5910.11:435.23:160.67:112:58Waning Crescent20Mon
21Tue8:4812.810:3710.72:484.94:00-0.37:103:00Waning Crescent21Tue
22Wed9:3813.311:1311.43:424.44:40-1.17:083:03New Moon22Wed
23Thu10:2513.811:4812.04:303.75:18-1.67:073:05New Moon23Thu
24Fri11:1014.15:162.95:56-1.97:053:07New Moon24Fri
25Sat12:2212.611:56 AM14.06:012.26:34-1.87:043:09New Moon25Sat
26Sun12:5813.112:4213.66:481.67:11-1.47:023:11Waxing Crescent26Sun
27Mon1:3513.41:3012.97:361.27:49-0.57:003:13Waxing Crescent27Mon
28Tue2:1413.62:2311.98:271.08:290.66:593:15Waxing Crescent28Tue
29Wed2:5513.53:2210.89:241.09:121.86:573:17First Quarter29Wed
30Thu3:4213.34:349.910:291.210:013.16:553:19First Quarter30Thu
31Fri4:3612.96:069.311:461.211:074.26:533:22First Quarter31Fri
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