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 5h 15m 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 - Aug 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:0612.11:0311.36:40-0.86:502.02:557:05Waxing Crescent1Thu
2Fri12:4111.71:3011.47:08-0.47:251.82:577:03Waxing Crescent2Fri
3Sat1:1711.21:5711.47:350.28:021.82:597:01Waxing Crescent3Sat
4Sun1:5410.52:2511.48:030.98:421.83:016:59Waxing Crescent4Sun
5Mon2:359.82:5511.38:311.89:281.93:036:57First Quarter5Mon
6Tue3:249.13:3111.29:022.710:242.03:056:55First Quarter6Tue
7Wed4:288.54:1711.19:403.511:361.93:076:52First Quarter7Wed
8Thu5:568.25:1611.110:364.23:096:50First Quarter8Thu
9Fri7:378.46:2811.412:551.412:014.73:116:48Waxing Gibbous9Fri
10Sat8:519.07:4011.82:050.71:324.53:136:46Waxing Gibbous10Sat
11Sun9:419.78:4412.53:02-0.22:434.03:156:43Waxing Gibbous11Sun
12Mon10:2210.59:4013.13:50-1.13:403.13:176:41Waxing Gibbous12Mon
13Tue11:0011.310:3113.54:33-1.84:312.13:196:39Full Moon13Tue
14Wed11:3612.111:2013.75:14-2.25:201.13:216:36Full Moon14Wed
15Thu12:1312.75:54-2.26:080.33:236:34Full Moon15Thu
16Fri12:0913.512:5013.26:33-1.86:56-0.23:256:32Waning Gibbous16Fri
17Sat12:5812.91:2813.47:12-1.07:46-0.53:276:29Waning Gibbous17Sat
18Sun1:5012.02:0913.37:520.18:38-0.33:296:27Waning Gibbous18Sun
19Mon2:4511.02:5213.08:331.49:350.13:316:24Third Quarter19Mon
20Tue3:4810.03:4112.49:182.610:420.53:336:22Third Quarter20Tue
21Wed5:079.24:4111.810:153.83:356:20Third Quarter21Wed
22Thu6:449.05:5411.412:020.911:36 AM4.53:376:17Third Quarter22Thu
23Fri8:169.27:1311.31:240.91:144.73:396:15Waning Crescent23Fri
24Sat9:199.88:2211.42:320.62:314.33:416:12Waning Crescent24Sat
25Sun10:0210.39:1711.73:240.23:263.73:436:10Waning Crescent25Sun
26Mon10:3510.710:0211.94:05-0.14:083.03:456:07Waning Crescent26Mon
27Tue11:0311.110:4012.14:40-0.34:452.43:476:04New Moon27Tue
28Wed11:2911.411:1612.15:10-0.35:191.83:496:02New Moon28Wed
29Thu11:5411.711:5011.95:38-0.25:511.43:515:59New Moon29Thu
30Fri12:1811.96:050.16:231.03:535:57New Moon30Fri
31Sat12:2311.712:4212.06:320.66:550.93:555:54Waxing Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451095)

Common Questions About Port Protection, Prince of Wales Island, AK Tides

Show All
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