Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Ketchikan, AK.
Next low tide (tomorrow) : in 1h 26m at 9:28 pm (-0.2 ft)
Next high tide : 3:38 am (15.7 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - Aug 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:1915.92:2014.27:51-1.67:542.74:558:50Full Moon1Sat
2Sun1:5715.92:5014.48:24-1.58:292.34:578:48Full Moon2Sun
3Mon2:3215.73:1914.58:54-1.29:042.14:598:46Waning Gibbous3Mon
4Tue3:0515.13:4714.49:22-0.69:392.15:018:44Waning Gibbous4Tue
5Wed3:3914.34:1514.39:500.310:152.25:028:42Waning Gibbous5Wed
6Thu4:1513.44:4314.010:181.410:552.55:048:40Waning Gibbous6Thu
7Fri4:5412.35:1513.710:472.611:402.95:068:38Third Quarter7Fri
8Sat5:4011.15:5213.311:213.95:088:35Third Quarter8Sat
9Sun6:4110.26:4212.912:363.212:055.25:108:33Third Quarter9Sun
10Mon8:059.67:5012.81:493.31:106.25:128:31Third Quarter10Mon
11Tue9:419.99:0913.23:112.82:416.65:148:29Waning Crescent11Tue
12Wed10:5610.810:2014.24:221.74:066.25:168:27Waning Crescent12Wed
13Thu11:4912.111:2015.45:180.25:115.05:178:24Waning Crescent13Thu
14Fri12:3313.46:05-1.36:033.65:198:22New Moon14Fri
15Sat12:1216.61:1214.76:47-2.56:502.15:218:20New Moon15Sat
16Sun1:0017.61:5115.97:27-3.47:350.75:238:17New Moon16Sun
17Mon1:4618.02:2816.88:06-3.68:20-0.35:258:15New Moon17Mon
18Tue2:3117.93:0617.38:45-3.29:05-0.95:278:13Waxing Crescent18Tue
19Wed3:1717.13:4417.59:24-2.29:52-1.05:298:10Waxing Crescent19Wed
20Thu4:0515.84:2417.110:04-0.710:43-0.65:318:08Waxing Crescent20Thu
21Fri4:5714.25:0716.410:471.211:390.35:338:06First Quarter21Fri
22Sat5:5612.55:5715.311:353.25:358:03First Quarter22Sat
23Sun7:1311.27:0014.212:461.212:365.05:368:01First Quarter23Sun
24Mon8:5010.78:2013.52:091.82:006.25:387:58Waxing Gibbous24Mon
25Tue10:2111.19:4513.63:351.83:356.35:407:56Waxing Gibbous25Tue
26Wed11:2612.110:5314.14:461.24:495.55:427:53Waxing Gibbous26Wed
27Thu12:1113.05:390.45:434.45:447:51Waxing Gibbous27Thu
28Fri12:4813.76:20-0.26:253.45:467:48Full Moon28Fri
29Sat12:2815.31:1914.46:55-0.77:012.45:487:46Full Moon29Sat
30Sun1:0415.71:4714.87:25-0.87:341.65:507:43Full Moon30Sun
31Mon1:3815.82:1315.27:53-0.78:051.15:527:41Full Moon31Mon
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 12:33 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 spring phase. Tonight's moon is 12% 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 maximum.

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 Waxing Crescent (12% illuminated). This places Ketchikan, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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