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 3h 20m 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 - May 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:3211.410:1913.74:16-1.34:131.43:096:33New Moon1Wed
2Thu11:2211.610:5813.95:01-2.14:561.83:076:35New Moon2Thu
3Fri12:0911.65:44-2.45:392.23:056:37New Moon3Fri
4Sat12:5511.46:27-2.36:212.73:036:39Waxing Crescent4Sat
5Sun12:1713.41:4211.07:10-1.97:033.23:006:41Waxing Crescent5Sun
6Mon12:5712.82:2910.67:53-1.37:483.62:586:43Waxing Crescent6Mon
7Tue1:3912.03:2110.18:38-0.58:374.02:566:45Waxing Crescent7Tue
8Wed2:2511.24:179.89:270.29:364.32:546:47First Quarter8Wed
9Thu3:1910.35:179.610:200.910:524.32:526:49First Quarter9Thu
10Fri4:269.56:149.711:181.52:506:51First Quarter10Fri
11Sat5:449.07:0510.012:163.912:181.92:486:53First Quarter11Sat
12Sun7:038.97:4610.51:273.11:122.12:466:55Waxing Gibbous12Sun
13Mon8:119.18:2211.02:202.22:002.32:446:57Waxing Gibbous13Mon
14Tue9:079.48:5611.53:021.32:432.52:426:59Waxing Gibbous14Tue
15Wed9:559.89:2912.03:410.43:222.72:407:01Waxing Gibbous15Wed
16Thu10:3910.210:0212.54:17-0.44:012.82:387:02Full Moon16Thu
17Fri11:2010.610:3612.84:53-1.04:383.02:367:04Full Moon17Fri
18Sat12:0010.85:31-1.55:173.12:347:06Full Moon18Sat
19Sun12:4210.86:10-1.95:573.22:327:08Full Moon19Sun
20Mon1:2510.86:51-2.06:393.32:317:10Waning Gibbous20Mon
21Tue12:3213.02:1210.77:34-1.97:263.42:297:12Waning Gibbous21Tue
22Wed1:1812.63:0210.68:21-1.68:213.52:277:13Waning Gibbous22Wed
23Thu2:1011.93:5510.69:10-1.19:253.42:267:15Third Quarter23Thu
24Fri3:1111.14:5110.810:03-0.410:423.12:247:17Third Quarter24Fri
25Sat4:2410.35:4711.111:010.32:237:18Third Quarter25Sat
26Sun5:479.76:4011.612:032.412:021.02:217:20Third Quarter26Sun
27Mon7:119.57:3112.21:171.31:041.62:207:22Waning Crescent27Mon
28Tue8:289.78:2012.72:200.22:022.12:197:23Waning Crescent28Tue
29Wed9:3410.19:0613.13:14-0.82:562.52:177:25Waning Crescent29Wed
30Thu10:3010.59:5013.34:02-1.63:472.82:167:26New Moon30Thu
31Fri11:1910.810:3313.44:48-2.14:353.02:157:28New Moon31Fri
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