Tides Today & Tomorrow in Ketchikan, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Ketchikan, AK.
Next low tide (tomorrow) : 12:45 am (2.9 ft)
Next high tide : in 3h 11m at 5:52 pm (13.6 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 - Sep 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:5511.88:4414.32:201.22:275.34:526:40Waning Crescent1Sat
2Sun10:0412.79:5114.93:300.53:414.74:546:38Waning Crescent2Sun
3Mon10:5513.610:4515.54:26-0.24:373.74:566:35Waning Crescent3Mon
4Tue11:3714.511:3116.15:12-0.95:232.74:576:32New Moon4Tue
5Wed12:1315.15:51-1.26:021.84:596:30New Moon5Wed
6Thu12:1116.312:4615.56:26-1.36:381.25:016:27New Moon6Thu
7Fri12:4716.31:1615.76:58-1.17:110.85:036:25New Moon7Fri
8Sat1:2216.01:4415.77:29-0.67:440.75:056:22Waxing Crescent8Sat
9Sun1:5515.42:1215.57:580.28:170.95:076:20Waxing Crescent9Sun
10Mon2:2914.62:4015.18:271.28:501.25:096:17Waxing Crescent10Mon
11Tue3:0413.73:0914.68:572.49:271.85:116:14Waxing Crescent11Tue
12Wed3:4212.63:4213.99:293.610:102.65:136:12First Quarter12Wed
13Thu4:2911.54:2213.210:074.911:043.35:146:09First Quarter13Thu
14Fri5:3210.65:1712.610:596.05:166:07First Quarter14Fri
15Sat7:0210.26:3412.312:193.712:196.75:186:04First Quarter15Sat
16Sun8:3310.77:5912.71:463.41:556.65:206:01Waxing Gibbous16Sun
17Mon9:3711.89:0913.72:582.43:095.55:225:59Waxing Gibbous17Mon
18Tue10:2313.110:0515.03:531.14:034.05:245:56Waxing Gibbous18Tue
19Wed11:0314.510:5416.34:37-0.34:502.35:265:54Waxing Gibbous19Wed
20Thu11:4015.811:4017.35:17-1.45:330.65:285:51Full Moon20Thu
21Fri12:1717.05:56-2.16:15-0.85:305:48Full Moon21Fri
22Sat12:2517.912:5417.96:34-2.36:57-1.95:325:46Full Moon22Sat
23Sun1:1017.91:3218.37:13-1.97:41-2.45:335:43Waning Gibbous23Sun
24Mon1:5517.42:1118.27:53-1.08:27-2.35:355:41Waning Gibbous24Mon
25Tue2:4316.42:5217.78:340.49:16-1.65:375:38Waning Gibbous25Tue
26Wed3:3515.03:3816.69:192.010:11-0.55:395:35Third Quarter26Wed
27Thu4:3413.54:3115.310:123.811:170.75:415:33Third Quarter27Thu
28Fri5:4712.35:4114.011:205.35:435:30Third Quarter28Fri
29Sat7:1711.97:0913.312:361.612:536.05:455:28Third Quarter29Sat
30Sun7:4312.37:3413.51:001.71:285.64:474:25Waning Crescent30Sun
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 9:18 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 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