Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Ketchikan, AK.
Next low tide : in 3h 44m at 2:05 am (3.5 ft)
Next high tide : 8:46 am (9.6 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:30 am
Moon phase : First Quarter (57% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Apr 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:1916.912:4016.86:25-1.16:40-1.35:186:22Full Moon1Wed
2Thu12:5517.61:2216.97:04-2.07:18-1.15:156:24Full Moon2Thu
3Fri1:3218.02:0516.67:46-2.47:57-0.45:126:26Waning Gibbous3Fri
4Sat2:1117.92:5115.88:30-2.38:400.65:106:28Waning Gibbous4Sat
5Sun2:5317.43:4214.79:18-1.69:271.95:076:30Waning Gibbous5Sun
6Mon3:4016.44:4113.510:12-0.610:223.35:056:32Third Quarter6Mon
7Tue4:3615.25:5312.511:170.411:334.45:026:34Third Quarter7Tue
8Wed5:4614.07:1712.312:341.25:006:36Third Quarter8Wed
9Thu7:1013.48:3612.81:004.81:551.44:576:38Third Quarter9Thu
10Fri8:3313.59:3913.82:264.23:051.04:556:40Waning Crescent10Fri
11Sat9:4114.110:2814.73:352.94:020.54:526:42Waning Crescent11Sat
12Sun10:3714.811:1015.64:281.64:480.14:506:44Waning Crescent12Sun
13Mon11:2315.311:4716.15:130.45:280.04:476:46New Moon13Mon
14Tue12:0515.55:53-0.56:030.14:456:48New Moon14Tue
15Wed12:2016.412:4315.56:29-1.16:370.44:426:50New Moon15Wed
16Thu12:5216.51:1915.37:04-1.37:090.94:406:52New Moon16Thu
17Fri1:2216.31:5414.97:38-1.27:401.64:376:54Waxing Crescent17Fri
18Sat1:5215.92:2914.28:12-0.88:122.54:356:56Waxing Crescent18Sat
19Sun2:2215.33:0513.58:47-0.18:453.44:326:58Waxing Crescent19Sun
20Mon2:5414.53:4612.69:250.79:214.34:307:00Waxing Crescent20Mon
21Tue3:3113.64:3311.710:091.610:055.24:287:02First Quarter21Tue
22Wed4:1612.75:3311.111:022.411:065.94:257:04First Quarter22Wed
23Thu5:1611.86:4611.012:082.94:237:06First Quarter23Thu
24Fri6:3611.47:5711.512:296.11:212.94:207:08First Quarter24Fri
25Sat7:5711.78:5612.51:555.42:262.44:187:10Waxing Gibbous25Sat
26Sun9:0512.59:4313.73:014.13:201.74:167:12Waxing Gibbous26Sun
27Mon10:0013.610:2515.03:532.44:070.94:147:14Waxing Gibbous27Mon
28Tue10:5014.711:0416.34:380.64:500.24:117:16Waxing Gibbous28Tue
29Wed11:3715.611:4417.45:21-1.15:31-0.34:097:18Full Moon29Wed
30Thu12:2216.26:03-2.56:13-0.44:077:20Full Moon30Thu
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 5:25 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 neap phase. Tonight's moon is 57% 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 minimum.

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 (57% illuminated). This places Ketchikan, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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