Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Ketchikan, AK.
Next low tide : in 3h 45m at 9:41 am (-0.7 ft)
Next high tide : 4:00 pm (16.3 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Sep 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:4213.69:2516.43:11-0.63:183.23:525:39Waxing Gibbous1Mon
2Tue10:2515.210:1717.43:59-1.94:101.33:545:37Full Moon2Tue
3Wed11:0516.511:0618.04:41-2.74:57-0.33:565:34Full Moon3Wed
4Thu11:4317.611:5218.05:21-2.95:41-1.63:585:32Full Moon4Thu
5Fri12:2018.16:00-2.56:25-2.24:005:29Waning Gibbous5Fri
6Sat12:3817.412:5718.16:38-1.67:09-2.24:025:27Waning Gibbous6Sat
7Sun1:2216.31:3417.67:15-0.17:54-1.64:045:24Waning Gibbous7Sun
8Mon2:0814.92:1216.67:541.68:42-0.44:065:21Waning Gibbous8Mon
9Tue2:5813.32:5415.38:353.59:361.04:075:19Third Quarter9Tue
10Wed3:5611.73:4413.99:225.210:442.34:095:16Third Quarter10Wed
11Thu5:1410.64:5512.610:306.64:115:14Third Quarter11Thu
12Fri6:5710.46:3012.112:093.012:157.24:135:11Third Quarter12Fri
13Sat8:2111.07:5312.51:332.91:526.64:155:09Waning Crescent13Sat
14Sun9:1111.98:5213.32:362.22:525.44:175:06Waning Crescent14Sun
15Mon9:4712.99:3614.13:211.43:344.24:195:03Waning Crescent15Mon
16Tue10:1713.810:1314.73:560.74:092.94:215:01Waning Crescent16Tue
17Wed10:4414.610:4715.24:270.34:411.84:234:58New Moon17Wed
18Thu11:0915.311:2015.44:550.05:110.94:254:55New Moon18Thu
19Fri11:3515.911:5315.45:220.15:410.24:264:53New Moon19Fri
20Sat12:0116.35:490.46:11-0.34:284:50New Moon20Sat
21Sun12:2615.212:2716.46:171.06:43-0.44:304:48Waxing Crescent21Sun
22Mon1:0014.712:5516.36:451.87:17-0.24:324:45Waxing Crescent22Mon
23Tue1:3613.91:2616.07:162.87:560.24:344:42Waxing Crescent23Tue
24Wed2:1812.92:0215.47:514.08:421.04:364:40Waxing Crescent24Wed
25Thu3:1011.82:4914.68:345.19:431.84:384:37First Quarter25Thu
26Fri4:2310.93:5413.79:366.211:052.34:404:35First Quarter26Fri
27Sat5:5910.85:2513.311:116.74:424:32First Quarter27Sat
28Sun7:2611.76:5913.712:352.012:545.94:444:29Waxing Gibbous28Sun
29Mon8:2713.28:1314.71:491.12:104.24:454:27Waxing Gibbous29Mon
30Tue9:1314.89:1315.82:450.03:072.14:474:24Waxing Gibbous30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9450460)

Common Questions About Ketchikan, AK Tides

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What time does the tide turn (slack tide) in Ketchikan, AK today?

Slack tide in Ketchikan, AK is approximately 12:50 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 Ketchikan, AK?

Ketchikan, AK is currently in a spring phase. Tonight's moon is 20% 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 near their weekly maximum.

What datum are Ketchikan, 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 Ketchikan, AK?

Tide predictions for Ketchikan, 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 Ketchikan, AK?

Tide data for Ketchikan, AK is sourced from NOAA Station #9450460. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9450460.

What is the moon phase in Ketchikan, AK tonight?

Tonight the moon over Ketchikan, AK is Waxing Crescent (20% illuminated). This places Ketchikan, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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