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 4h 32m 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 - Oct 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:4613.28:4114.12:101.32:384.54:494:23Waning Crescent1Mon
2Tue9:3314.29:3314.83:050.83:283.24:514:20Waning Crescent2Tue
3Wed10:1014.910:1615.33:480.34:092.14:534:17Waning Crescent3Wed
4Thu10:4315.510:5415.64:240.04:441.14:554:15New Moon4Thu
5Fri11:1216.011:2815.74:570.05:170.44:574:12New Moon5Fri
6Sat11:3916.25:270.35:470.04:584:10New Moon6Sat
7Sun12:0115.512:0516.35:560.86:18-0.25:004:07New Moon7Sun
8Mon12:3415.212:3216.16:241.56:48-0.15:024:05Waxing Crescent8Mon
9Tue1:0614.612:5915.76:522.47:200.35:044:02Waxing Crescent9Tue
10Wed1:4113.81:2815.27:223.47:541.05:064:00Waxing Crescent10Wed
11Thu2:1912.92:0014.57:544.48:341.85:083:57Waxing Crescent11Thu
12Fri3:0412.02:3913.78:335.59:242.65:103:55First Quarter12Fri
13Sat4:0411.23:3312.89:266.510:323.25:123:52First Quarter13Sat
14Sun5:2710.84:5112.310:477.011:563.25:143:50First Quarter14Sun
15Mon6:5411.46:2212.512:276.65:163:47First Quarter15Mon
16Tue7:5812.57:4013.41:132.51:435.35:183:45Waxing Gibbous16Tue
17Wed8:4513.98:4114.72:121.42:403.45:203:42Waxing Gibbous17Wed
18Thu9:2615.59:3315.93:010.43:281.35:223:40Waxing Gibbous18Thu
19Fri10:0516.910:2216.93:44-0.54:12-0.65:243:38Full Moon19Fri
20Sat10:4318.211:0917.54:25-1.04:55-2.25:263:35Full Moon20Sat
21Sun11:2219.011:5617.65:06-1.05:39-3.35:283:33Full Moon21Sun
22Mon12:0119.35:47-0.56:23-3.75:303:31Waning Gibbous22Mon
23Tue12:4317.212:4219.06:280.47:09-3.35:323:28Waning Gibbous23Tue
24Wed1:3216.31:2618.17:121.77:58-2.45:353:26Waning Gibbous24Wed
25Thu2:2415.12:1316.88:003.28:52-1.05:373:24Waning Gibbous25Thu
26Fri3:2213.93:0815.28:564.79:540.55:393:21Third Quarter26Fri
27Sat4:3312.94:1813.710:085.811:081.65:413:19Third Quarter27Sat
28Sun5:5512.55:4512.811:426.25:433:17Third Quarter28Sun
29Mon7:1312.97:1212.712:272.21:145.55:453:15Waning Crescent29Mon
30Tue8:1313.68:2013.21:362.12:204.35:473:13Waning Crescent30Tue
31Wed8:5914.49:1213.82:311.93:093.05:493:10Waning Crescent31Wed
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