Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Ketchikan, AK.
Next low tide : 1:44 pm (6.9 ft)
Next high tide : in 4h 10m at 8:46 am (9.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:32 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Sep 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:3112.88:2215.01:590.82:113.93:525:40Waxing Gibbous1Mon
2Tue9:2813.99:2115.73:000.03:122.93:545:38Waxing Gibbous2Tue
3Wed10:1514.910:1116.33:49-0.84:021.83:555:35Full Moon3Wed
4Thu10:5515.610:5416.64:32-1.24:450.93:575:33Full Moon4Thu
5Fri11:3116.111:3416.75:09-1.45:250.23:595:30Full Moon5Fri
6Sat12:0416.35:44-1.26:02-0.14:015:27Full Moon6Sat
7Sun12:1116.412:3616.26:17-0.76:37-0.14:035:25Waning Gibbous7Sun
8Mon12:4715.81:0615.96:480.17:120.24:055:22Waning Gibbous8Mon
9Tue1:2215.01:3615.47:191.17:480.84:075:20Waning Gibbous9Tue
10Wed1:5814.12:0814.77:512.28:271.54:095:17Waning Gibbous10Wed
11Thu2:3713.02:4213.98:243.49:112.44:115:15Third Quarter11Thu
12Fri3:2311.93:2413.19:034.610:053.24:125:12Third Quarter12Fri
13Sat4:2110.94:2012.39:555.711:163.74:145:09Third Quarter13Sat
14Sun5:4010.55:3712.011:116.34:165:07Third Quarter14Sun
15Mon7:0610.86:5912.312:363.512:446.24:185:04Waning Crescent15Mon
16Tue8:1211.78:0613.21:462.71:585.34:205:02Waning Crescent16Tue
17Wed9:0112.98:5914.42:391.62:523.94:224:59Waning Crescent17Wed
18Thu9:4214.39:4615.63:230.53:372.44:244:56Waning Crescent18Thu
19Fri10:2015.610:3016.64:02-0.64:180.84:264:54New Moon19Fri
20Sat10:5616.711:1217.24:40-1.34:59-0.54:284:51New Moon20Sat
21Sun11:3317.711:5517.55:18-1.75:39-1.64:304:49New Moon21Sun
22Mon12:1118.25:56-1.66:21-2.24:314:46Waxing Crescent22Mon
23Tue12:3917.312:5018.36:36-1.17:05-2.24:334:43Waxing Crescent23Tue
24Wed1:2516.61:3217.97:18-0.17:52-1.74:354:41Waxing Crescent24Wed
25Thu2:1515.52:1717.18:031.38:45-0.84:374:38Waxing Crescent25Thu
26Fri3:1114.23:1015.98:552.89:460.44:394:36First Quarter26Fri
27Sat4:1813.14:1414.79:594.111:001.34:414:33First Quarter27Sat
28Sun5:4012.55:3413.811:215.04:434:30First Quarter28Sun
29Mon7:0512.77:0013.712:231.712:514.84:454:28Waxing Gibbous29Mon
30Tue8:1413.58:1314.21:391.52:063.84:474:25Waxing 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 11:15 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 Ketchikan, AK?

Ketchikan, AK is currently in a transitional phase. Tonight's moon is 66% 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 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 First Quarter (66% illuminated). This places Ketchikan, 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