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 2h 04m 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 - Sep 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:1215.81:3815.47:22-0.77:341.04:516:41Waxing Crescent1Wed
2Thu1:4515.52:0715.57:51-0.38:070.94:536:39Waxing Crescent2Thu
3Fri2:1915.02:3815.48:220.48:431.04:556:36Waxing Crescent3Fri
4Sat2:5614.33:1115.28:541.39:241.34:566:34Waxing Crescent4Sat
5Sun3:3813.33:4914.89:322.410:121.84:586:31First Quarter5Sun
6Mon4:3012.34:3714.310:173.611:132.25:006:29First Quarter6Mon
7Tue5:3811.55:3913.911:174.65:026:26First Quarter7Tue
8Wed7:0511.26:5713.812:302.312:375.25:046:24First Quarter8Wed
9Thu8:3211.88:1814.41:541.72:054.95:066:21Waxing Gibbous9Thu
10Fri9:4013.19:2815.53:060.63:193.85:086:18Waxing Gibbous10Fri
11Sat10:3414.510:2716.74:05-0.74:192.25:106:16Waxing Gibbous11Sat
12Sun11:2015.911:2017.74:55-1.85:100.75:126:13Full Moon12Sun
13Mon12:0317.05:40-2.65:58-0.75:136:11Full Moon13Mon
14Tue12:0918.212:4417.86:22-2.86:43-1.65:156:08Full Moon14Tue
15Wed12:5518.21:2318.07:03-2.57:27-2.05:176:05Waning Gibbous15Wed
16Thu1:4017.72:0217.87:43-1.68:11-1.75:196:03Waning Gibbous16Thu
17Fri2:2516.72:4117.28:22-0.38:56-1.05:216:00Waning Gibbous17Fri
18Sat3:1015.33:2116.19:031.39:430.15:235:58Waning Gibbous18Sat
19Sun3:5913.84:0414.99:463.010:361.35:255:55Third Quarter19Sun
20Mon4:5512.44:5613.610:364.711:402.55:275:52Third Quarter20Mon
21Tue6:0611.36:0312.511:435.95:295:50Third Quarter21Tue
22Wed7:3411.07:2712.112:583.11:146.45:315:47Third Quarter22Wed
23Thu8:5411.48:4412.52:163.02:406.05:325:45Waning Crescent23Thu
24Fri9:5012.29:4213.23:192.53:405.15:345:42Waning Crescent24Fri
25Sat10:3113.210:2814.04:061.84:253.95:365:39Waning Crescent25Sat
26Sun11:0414.011:0714.84:451.15:012.85:385:37Waning Crescent26Sun
27Mon11:3514.911:4315.45:190.55:341.75:405:34New Moon27Mon
28Tue12:0415.65:500.16:060.85:425:32New Moon28Tue
29Wed12:1715.712:3316.16:20-0.16:380.15:445:29New Moon29Wed
30Thu12:5115.91:0216.56:500.17:10-0.35:465:26New 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 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