Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Ketchikan, AK.
Next low tide (tomorrow) : in 33m at 11:44 pm (2.0 ft)
Next high tide : 5:58 am (11.2 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Apr 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:1814.39:2413.92:114.82:53-0.14:185:22Waxing Gibbous1Tue
2Wed9:2115.210:0715.13:143.13:42-0.94:155:24Waxing Gibbous2Wed
3Thu10:1216.010:4516.14:031.54:24-1.34:135:26Full Moon3Thu
4Fri10:5716.411:2016.84:460.05:02-1.44:105:28Full Moon4Fri
5Sat11:3916.411:5217.15:26-1.05:37-1.04:085:30Full Moon5Sat
6Sun12:1816.16:03-1.56:11-0.24:055:32Full Moon6Sun
7Mon12:2317.112:5615.46:39-1.66:430.84:035:34Waning Gibbous7Mon
8Tue12:5316.71:3314.57:14-1.27:152.04:005:36Waning Gibbous8Tue
9Wed1:2316.02:1113.47:50-0.47:483.33:585:38Waning Gibbous9Wed
10Thu1:5415.12:5312.28:280.68:234.63:555:40Waning Gibbous10Thu
11Fri2:2814.03:4311.19:121.89:055.83:535:42Third Quarter11Fri
12Sat3:1112.94:5310.210:092.910:066.83:505:44Third Quarter12Sat
13Sun4:1111.86:2710.111:273.511:447.13:485:46Third Quarter13Sun
14Mon5:3811.37:4810.712:543.43:455:48Third Quarter14Mon
15Tue7:0811.58:3911.71:206.52:002.73:435:50Waning Crescent15Tue
16Wed8:1512.49:1712.82:245.22:481.83:405:52Waning Crescent16Wed
17Thu9:0713.39:4914.03:103.63:261.03:385:54Waning Crescent17Thu
18Fri9:5114.310:2015.23:491.94:010.43:355:56Waning Crescent18Fri
19Sat10:3315.110:5216.24:260.34:350.03:335:58New Moon19Sat
20Sun11:1415.711:2417.15:02-1.15:09-0.13:306:00New Moon20Sun
21Mon11:5515.911:5717.65:40-2.25:440.23:286:01New Moon21Mon
22Tue12:3715.76:19-2.96:200.83:266:03Waxing Crescent22Tue
23Wed12:3317.71:2215.27:01-3.06:591.73:236:05Waxing Crescent23Wed
24Thu1:1217.42:1014.37:46-2.57:432.93:216:07Waxing Crescent24Thu
25Fri1:5516.63:0613.28:37-1.68:334.13:196:09Waxing Crescent25Fri
26Sat2:4715.44:1312.39:37-0.59:385.13:166:11First Quarter26Sat
27Sun3:5214.15:3311.910:490.511:065.63:146:13First Quarter27Sun
28Mon5:1713.16:5412.312:091.03:126:15First Quarter28Mon
29Tue6:4812.98:0113.312:445.11:220.93:106:17Waxing Gibbous29Tue
30Wed8:0513.38:5214.42:023.72:220.63:076:19Waxing Gibbous30Wed
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 2:51 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 38% 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 (38% 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