Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Ketchikan, AK.
Next low tide : in 3h 31m at 12:45 am (2.9 ft)
Next high tide : 7:07 am (10.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:28 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Nov 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:4317.312:4519.26:310.17:08-3.66:524:08Full Moon1Wed
2Thu1:2917.01:2618.87:130.97:52-3.16:544:06Waning Gibbous2Thu
3Fri2:1516.22:0617.87:552.08:37-2.26:564:04Waning Gibbous3Fri
4Sat3:0315.22:4916.58:393.39:24-0.86:584:02Waning Gibbous4Sat
5Sun3:5414.13:3615.09:284.710:170.67:004:00Third Quarter5Sun
6Mon4:5213.04:3213.510:285.811:182.07:023:58Third Quarter6Mon
7Tue6:0112.45:4412.311:466.57:043:56Third Quarter7Tue
8Wed7:1712.37:1011.812:292.91:186.37:063:54Third Quarter8Wed
9Thu8:2312.78:2711.91:403.22:345.47:083:52Waning Crescent9Thu
10Fri9:1313.59:2712.52:413.13:284.27:103:50Waning Crescent10Fri
11Sat9:5214.310:1413.23:292.84:102.97:123:48Waning Crescent11Sat
12Sun10:2615.110:5513.84:092.64:461.77:143:46Waning Crescent12Sun
13Mon10:5715.811:3314.34:452.45:190.67:163:45Waning Crescent13Mon
14Tue11:2716.45:182.35:52-0.27:183:43New Moon14Tue
15Wed12:0914.711:58 AM16.85:512.46:24-0.97:203:41New Moon15Wed
16Thu12:4514.912:2917.16:232.66:56-1.27:223:40New Moon16Thu
17Fri1:2115.01:0117.16:573.07:31-1.37:243:38New Moon17Fri
18Sat1:5914.71:3616.87:323.48:08-1.17:263:37Waxing Crescent18Sat
19Sun2:4014.42:1416.38:104.08:49-0.67:283:35Waxing Crescent19Sun
20Mon3:2513.82:5715.68:554.79:370.17:303:34Waxing Crescent20Mon
21Tue4:1813.43:5014.79:495.310:330.87:323:32First Quarter21Tue
22Wed5:2013.14:5613.710:595.611:381.57:343:31First Quarter22Wed
23Thu6:3013.36:1813.112:225.37:363:30First Quarter23Thu
24Fri7:3814.17:4213.112:491.91:444.17:383:28First Quarter24Fri
25Sat8:3715.28:5613.71:581.92:532.47:393:27Waxing Gibbous25Sat
26Sun9:2816.49:5914.62:591.73:500.57:413:26Waxing Gibbous26Sun
27Mon10:1517.510:5515.43:531.54:40-1.27:433:25Waxing Gibbous27Mon
28Tue10:5918.411:4516.04:421.45:26-2.47:453:24Full Moon28Tue
29Wed11:4218.85:271.56:10-3.27:463:23Full Moon29Wed
30Thu12:3316.212:2318.86:111.86:53-3.37:483:22Full Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9450460)

Common Questions About Ketchikan, AK Tides

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

Slack tide in Ketchikan, AK is approximately 3:56 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 47% 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 (47% 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