Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Ketchikan, AK.
Next low tide : 12:24 pm (6.0 ft)
Next high tide : in 4h 15m at 7:07 am (10.1 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 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:4115.64:3514.810:363.210:570.48:133:26First Quarter1Sat
2Sun5:3815.35:4313.411:463.311:561.88:133:27First Quarter2Sun
3Mon6:3915.27:0212.41:023.08:133:28First Quarter3Mon
4Tue7:4315.38:2512.11:023.02:172.38:123:29Waxing Gibbous4Tue
5Wed8:4315.59:3812.52:103.83:221.38:123:31Waxing Gibbous5Wed
6Thu9:3715.910:3813.13:144.24:160.38:113:32Waxing Gibbous6Thu
7Fri10:2616.311:2813.74:104.35:03-0.58:113:34Waxing Gibbous7Fri
8Sat11:1016.64:594.25:44-1.08:103:35Full Moon8Sat
9Sun12:1114.211:50 AM16.75:424.06:22-1.38:093:37Full Moon9Sun
10Mon12:4914.612:2816.76:213.86:58-1.48:093:38Full Moon10Mon
11Tue1:2514.71:0316.66:573.77:32-1.38:083:40Full Moon11Tue
12Wed1:5814.81:3816.27:333.78:05-0.98:073:41Waning Gibbous12Wed
13Thu2:3114.72:1215.68:083.88:38-0.48:063:43Waning Gibbous13Thu
14Fri3:0414.42:4714.88:454.09:110.48:053:45Waning Gibbous14Fri
15Sat3:3814.23:2413.99:244.39:461.38:043:47Waning Gibbous15Sat
16Sun4:1513.94:0712.910:094.510:242.38:033:48Third Quarter16Sun
17Mon4:5513.74:5911.811:024.711:083.38:023:50Third Quarter17Mon
18Tue5:4313.66:0711.012:074.68:013:52Third Quarter18Tue
19Wed6:3813.77:3010.812:024.31:214.18:003:54Third Quarter19Wed
20Thu7:3914.18:5111.21:085.02:333.07:583:56Waning Crescent20Thu
21Fri8:4014.99:5912.22:195.13:341.57:573:58Waning Crescent21Fri
22Sat9:3815.910:5513.43:254.84:27-0.17:564:00Waning Crescent22Sat
23Sun10:3117.111:4414.64:224.15:14-1.67:544:02Waning Crescent23Sun
24Mon11:2218.15:143.16:00-2.97:534:04New Moon24Mon
25Tue12:2915.712:1118.96:032.26:43-3.77:514:06New Moon25Tue
26Wed1:1316.512:5819.26:511.47:27-3.97:494:08New Moon26Wed
27Thu1:5617.11:4618.97:380.98:10-3.67:484:10Waxing Crescent27Thu
28Fri2:3917.32:3318.18:270.78:53-2.77:464:12Waxing Crescent28Fri
29Sat3:2317.13:2316.79:180.99:38-1.27:454:14Waxing Crescent29Sat
30Sun4:0916.64:1715.010:141.410:250.57:434:16First Quarter30Sun
31Mon4:5915.95:1813.311:162.011:182.37:414:18First Quarter31Mon
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 9:45 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 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