Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Ketchikan, AK.
Next low tide : 11:32 am (4.5 ft)
Next high tide : in 4h 25m at 5:58 am (11.2 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 - Jan 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:5814.36:3111.612:323.47:132:26First Quarter1Wed
2Thu6:5515.07:5012.012:174.01:401.97:132:27Waxing Gibbous2Thu
3Fri7:5216.09:0012.91:244.32:400.37:122:29Waxing Gibbous3Fri
4Sat8:4717.010:0014.02:284.33:35-1.47:122:30Waxing Gibbous4Sat
5Sun9:4118.010:5314.93:273.94:25-2.77:122:31Full Moon5Sun
6Mon10:3318.711:4315.74:213.45:14-3.67:112:33Full Moon6Mon
7Tue11:2319.15:133.06:01-4.07:112:34Full Moon7Tue
8Wed12:3016.212:1319.06:032.66:46-3.97:102:35Waning Gibbous8Wed
9Thu1:1616.31:0118.36:522.57:32-3.27:092:37Waning Gibbous9Thu
10Fri2:0116.21:5017.27:432.68:16-2.07:092:39Waning Gibbous10Fri
11Sat2:4615.92:4015.78:362.99:02-0.67:082:40Waning Gibbous11Sat
12Sun3:3315.43:3414.09:333.39:481.17:072:42Third Quarter12Sun
13Mon4:2114.84:3512.410:373.610:392.87:062:44Third Quarter13Mon
14Tue5:1314.45:4911.211:483.711:364.27:052:45Third Quarter14Tue
15Wed6:0914.17:1310.81:013.47:042:47Third Quarter15Wed
16Thu7:0714.08:3111.012:405.32:082.77:032:49Waning Crescent16Thu
17Fri8:0314.29:3211.61:465.93:031.97:022:51Waning Crescent17Fri
18Sat8:5414.610:2012.42:465.93:481.17:002:53Waning Crescent18Sat
19Sun9:4015.110:5913.03:365.74:280.46:592:54Waning Crescent19Sun
20Mon10:2115.611:3513.64:205.25:04-0.26:582:56New Moon20Mon
21Tue10:5916.14:584.75:37-0.76:572:58New Moon21Tue
22Wed12:0714.111:35 AM16.45:344.26:09-1.16:553:00New Moon22Wed
23Thu12:3914.412:1016.56:093.86:40-1.26:543:02New Moon23Thu
24Fri1:1014.612:4416.36:443.57:11-1.16:523:04Waxing Crescent24Fri
25Sat1:4114.81:2015.87:203.37:42-0.76:513:06Waxing Crescent25Sat
26Sun2:1314.81:5815.17:593.28:150.16:493:08Waxing Crescent26Sun
27Mon2:4714.82:4114.18:433.18:511.16:473:10Waxing Crescent27Mon
28Tue3:2414.83:3213.09:343.19:332.36:463:12First Quarter28Tue
29Wed4:0814.74:3711.910:363.010:243.76:443:14First Quarter29Wed
30Thu5:0214.75:5911.211:502.711:304.96:423:16First Quarter30Thu
31Fri6:0814.87:3111.31:091.86:413:19Waxing Gibbous31Fri
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 8:45 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