Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Ketchikan, AK.
Next low tide : 1:44 pm (6.9 ft)
Next high tide : in 2h 08m at 8:46 am (9.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:32 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Jun 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:0713.34:1613.09:400.510:064.22:127:15First Quarter1Sun
2Mon4:0912.55:1413.210:371.111:203.82:117:17First Quarter2Mon
3Tue5:2312.16:1513.811:401.62:107:18First Quarter3Tue
4Wed6:4212.17:1514.712:352.812:451.82:097:19Waxing Gibbous4Wed
5Thu7:5612.68:1115.81:441.31:481.72:087:20Waxing Gibbous5Thu
6Fri9:0113.59:0316.92:44-0.42:461.52:087:21Waxing Gibbous6Fri
7Sat9:5914.49:5317.73:37-1.93:401.22:077:23Waxing Gibbous7Sat
8Sun10:5215.210:4218.34:27-3.24:310.92:067:24Full Moon8Sun
9Mon11:4215.711:3018.45:15-4.05:200.92:067:24Full Moon9Mon
10Tue12:3115.96:01-4.26:081.02:057:25Full Moon10Tue
11Wed12:1718.11:1815.86:47-3.96:571.42:057:26Waning Gibbous11Wed
12Thu1:0417.42:0515.37:33-3.27:461.92:047:27Waning Gibbous12Thu
13Fri1:5116.22:5314.78:19-2.08:392.62:047:28Waning Gibbous13Fri
14Sat2:4014.83:4314.19:06-0.79:363.22:047:28Third Quarter14Sat
15Sun3:3213.44:3613.59:560.710:403.62:047:29Third Quarter15Sun
16Mon4:3212.05:3213.110:512.011:493.62:047:30Third Quarter16Mon
17Tue5:4111.16:3013.111:493.02:037:30Third Quarter17Tue
18Wed6:5510.77:2413.312:583.212:503.72:037:31Waning Crescent18Wed
19Thu8:0310.98:1313.71:582.51:484.02:047:31Waning Crescent19Thu
20Fri9:0111.38:5714.22:491.62:394.02:047:31Waning Crescent20Fri
21Sat9:4912.09:3814.73:330.73:253.82:047:31Waning Crescent21Sat
22Sun10:3212.610:1615.24:13-0.24:063.62:047:32New Moon22Sun
23Mon11:1113.210:5315.64:49-0.94:443.32:047:32New Moon23Mon
24Tue11:4813.711:2915.85:25-1.45:213.12:057:32New Moon24Tue
25Wed12:2414.06:00-1.85:582.92:057:32New Moon25Wed
26Thu12:0615.91:0114.26:35-2.06:352.82:067:32Waxing Crescent26Thu
27Fri12:4315.81:3814.37:11-1.97:152.72:067:32Waxing Crescent27Fri
28Sat1:2215.42:1714.47:48-1.67:592.82:077:31Waxing Crescent28Sat
29Sun2:0414.82:5914.38:29-1.08:482.82:087:31Waxing Crescent29Sun
30Mon2:5213.93:4514.39:14-0.29:462.92:087:31First Quarter30Mon
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 11:15 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 transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

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 (66% illuminated). This places Ketchikan, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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