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 1h 45m at 12:24 pm (6.0 ft)
Next high tide : 6:46 pm (12.7 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 - Jan 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:4114.68:3211.91:073.82:212.98:133:26Waning Crescent1Fri
2Sat8:3915.59:4212.82:143.93:231.38:133:27Waning Crescent2Sat
3Sun9:3416.710:4114.03:173.74:17-0.48:133:28Waning Crescent3Sun
4Mon10:2617.811:3415.14:143.25:07-2.08:123:30Waning Crescent4Mon
5Tue11:1718.75:072.65:54-3.28:123:31New Moon5Tue
6Wed12:2316.012:0619.35:582.06:40-4.08:113:32New Moon6Wed
7Thu1:1016.712:5519.56:471.67:26-4.18:113:34New Moon7Thu
8Fri1:5717.01:4319.17:361.48:11-3.68:103:35Waxing Crescent8Fri
9Sat2:4317.02:3218.18:261.58:57-2.78:093:37Waxing Crescent9Sat
10Sun3:2916.73:2216.79:191.99:43-1.38:093:39Waxing Crescent10Sun
11Mon4:1816.14:1515.010:152.510:320.48:083:40First Quarter11Mon
12Tue5:0915.45:1613.311:183.011:262.18:073:42First Quarter12Tue
13Wed6:0614.96:2812.012:293.38:063:43First Quarter13Wed
14Thu7:0714.57:4911.412:263.51:443.18:053:45First Quarter14Thu
15Fri8:1014.49:0811.41:344.62:532.58:043:47Waxing Gibbous15Fri
16Sat9:0814.610:1312.02:425.13:511.88:033:49Waxing Gibbous16Sat
17Sun9:5915.011:0312.73:435.24:380.98:023:51Waxing Gibbous17Sun
18Mon10:4315.411:4413.34:334.95:190.28:003:52Waxing Gibbous18Mon
19Tue11:2315.85:154.55:56-0.47:593:54Full Moon19Tue
20Wed12:2013.911:59 AM16.25:534.16:29-0.87:583:56Full Moon20Wed
21Thu12:5314.412:3416.46:283.77:02-1.17:573:58Full Moon21Thu
22Fri1:2514.71:0816.47:023.47:33-1.17:554:00Full Moon22Fri
23Sat1:5714.91:4116.17:353.28:04-0.97:544:02Waning Gibbous23Sat
24Sun2:2815.02:1415.78:103.18:35-0.57:524:04Waning Gibbous24Sun
25Mon3:0015.02:5015.08:463.29:080.27:514:06Waning Gibbous25Mon
26Tue3:3414.83:2914.19:263.39:441.17:494:08Waning Gibbous26Tue
27Wed4:1114.74:1613.110:143.410:252.17:474:10Third Quarter27Wed
28Thu4:5514.55:1612.111:113.511:153.27:464:12Third Quarter28Thu
29Fri5:4814.46:3311.412:223.37:444:14Third Quarter29Fri
30Sat6:5114.68:0211.412:194.21:412.67:424:16Third Quarter30Sat
31Sun8:0115.19:2312.21:354.72:551.47:414:18Waning Crescent31Sun
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 3:35 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 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