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 2h 24m 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 - Oct 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:0412.02:4313.68:365.29:272.84:484:23First Quarter1Tue
2Wed4:0011.03:3012.69:226.410:323.64:504:21First Quarter2Wed
3Thu5:2210.34:4011.810:367.34:524:18First Quarter3Thu
4Fri7:0010.56:1511.712:003.912:227.34:544:15First Quarter4Fri
5Sat8:1011.47:3512.41:223.41:456.44:564:13Waxing Gibbous5Sat
6Sun8:5512.68:3413.52:212.42:404.94:584:10Waxing Gibbous6Sun
7Mon9:3113.89:2214.73:041.43:233.35:004:08Waxing Gibbous7Mon
8Tue10:0415.110:0615.73:420.44:021.65:024:05Waxing Gibbous8Tue
9Wed10:3616.310:4716.54:17-0.44:390.05:044:03Full Moon9Wed
10Thu11:0917.311:2917.04:52-0.75:17-1.35:064:00Full Moon10Thu
11Fri11:4318.05:27-0.75:56-2.35:083:58Full Moon11Fri
12Sat12:1117.012:1818.46:03-0.26:37-2.75:103:55Waning Gibbous12Sat
13Sun12:5516.512:5518.26:410.77:21-2.55:123:53Waning Gibbous13Sun
14Mon1:4215.61:3617.67:222.08:10-1.75:143:50Waning Gibbous14Mon
15Tue2:3414.52:2316.58:083.49:06-0.55:163:48Third Quarter15Tue
16Wed3:3613.23:2115.19:054.910:140.75:183:45Third Quarter16Wed
17Thu4:5312.44:3713.910:226.011:351.55:203:43Third Quarter17Thu
18Fri6:2312.36:1113.312:036.15:223:41Third Quarter18Fri
19Sat7:4013.17:3613.612:571.51:345.15:243:38Waning Crescent19Sat
20Sun8:3814.28:4214.32:041.12:393.65:263:36Waning Crescent20Sun
21Mon9:2315.29:3515.02:570.73:282.15:283:34Waning Crescent21Mon
22Tue10:0016.010:2015.53:400.44:090.85:303:31Waning Crescent22Tue
23Wed10:3416.611:0015.64:180.44:46-0.25:323:29New Moon23Wed
24Thu11:0416.911:3715.64:520.75:20-0.85:343:27New Moon24Thu
25Fri11:3317.05:241.25:53-1.15:363:24New Moon25Fri
26Sat12:1215.312:0116.85:551.96:25-0.95:383:22New Moon26Sat
27Sun12:4714.812:3016.46:262.86:57-0.55:403:20Waxing Crescent27Sun
28Mon1:2214.212:5915.76:573.77:310.25:423:17Waxing Crescent28Mon
29Tue2:0013.31:3014.97:294.88:081.15:443:15Waxing Crescent29Tue
30Wed2:4212.42:0614.08:065.88:522.15:463:13Waxing Crescent30Wed
31Thu3:3411.62:5213.08:536.79:483.05:483:11First Quarter31Thu
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