Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Ketchikan, AK.
Next low tide : in 2h 49m at 9:41 am (-0.7 ft)
Next high tide : 4:00 pm (16.3 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9450460
Common Questions About Tides

Ketchikan, AK Tides - May 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:5512.48:3711.912:575.61:471.95:038:23Third Quarter1Sat
2Sun8:2011.89:4012.42:275.32:582.35:018:25Third Quarter2Sun
3Mon9:3711.810:2713.23:414.33:562.34:598:27Waning Crescent3Mon
4Tue10:3712.111:0513.94:363.04:422.34:578:29Waning Crescent4Tue
5Wed11:2612.611:3814.55:201.75:212.44:558:31Waning Crescent5Wed
6Thu12:0813.05:570.65:552.54:538:33Waning Crescent6Thu
7Fri12:0815.012:4613.36:31-0.36:272.74:518:35New Moon7Fri
8Sat12:3715.41:2213.67:04-0.96:582.94:498:37New Moon8Sat
9Sun1:0615.61:5713.67:36-1.27:293.34:478:38New Moon9Sun
10Mon1:3615.72:3213.58:09-1.38:013.64:458:40New Moon10Mon
11Tue2:0715.63:0913.28:43-1.28:334.14:438:42Waxing Crescent11Tue
12Wed2:4015.33:4812.79:20-0.89:094.54:418:44Waxing Crescent12Wed
13Thu3:1614.84:3112.210:00-0.39:495.04:398:46Waxing Crescent13Thu
14Fri3:5614.25:2111.810:460.210:405.44:378:48Waxing Crescent14Fri
15Sat4:4613.46:1911.711:390.711:455.64:358:50First Quarter15Sat
16Sun5:4912.77:2112.012:391.24:348:51First Quarter16Sun
17Mon7:0712.18:2212.71:065.21:431.44:328:53First Quarter17Mon
18Tue8:2912.19:1713.92:274.02:451.54:308:55First Quarter18Tue
19Wed9:4312.510:0715.23:372.33:431.54:298:57Waxing Gibbous19Wed
20Thu10:4813.310:5416.44:350.34:361.54:278:58Waxing Gibbous20Thu
21Fri11:4714.011:3917.55:27-1.55:271.54:269:00Waxing Gibbous21Fri
22Sat12:4114.76:16-3.06:151.74:249:02Full Moon22Sat
23Sun12:2518.11:3215.07:03-3.97:031.94:239:03Full Moon23Sun
24Mon1:1118.32:2115.17:50-4.17:502.24:219:05Full Moon24Mon
25Tue1:5818.13:1014.88:37-3.88:382.74:209:06Waning Gibbous25Tue
26Wed2:4517.44:0014.39:25-3.19:283.34:199:08Waning Gibbous26Wed
27Thu3:3316.34:5113.610:14-2.010:223.94:179:09Waning Gibbous27Thu
28Fri4:2415.05:4513.011:05-0.711:224.44:169:11Waning Gibbous28Fri
29Sat5:1913.66:4112.611:590.54:159:12Third Quarter29Sat
30Sun6:2112.27:4012.512:314.612:551.74:149:14Third Quarter30Sun
31Mon7:3211.28:3512.71:444.41:532.64:139:15Third Quarter31Mon
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 12:50 pm — 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 20% 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 (20% 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