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 2h 05m 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 - Jun 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:2813.210:1215.94:08-0.74:022.62:127:15Full Moon1Sun
2Mon11:1013.510:4716.04:46-1.34:402.92:117:16Full Moon2Mon
3Tue11:5013.611:2015.95:22-1.65:173.22:107:17Full Moon3Tue
4Wed12:2713.55:57-1.65:533.62:107:19Full Moon4Wed
5Thu1:0413.36:32-1.46:294.02:097:20Waning Gibbous5Thu
6Fri12:2915.31:4112.97:07-1.07:054.42:087:21Waning Gibbous6Fri
7Sat1:0414.82:2012.57:44-0.47:444.82:077:22Waning Gibbous7Sat
8Sun1:4214.13:0212.18:230.28:285.22:077:23Waning Gibbous8Sun
9Mon2:2413.33:4811.89:050.99:215.42:067:24Waning Gibbous9Mon
10Tue3:1212.44:3911.89:511.510:245.42:057:25Third Quarter10Tue
11Wed4:1111.75:3312.010:442.011:354.92:057:26Third Quarter11Wed
12Thu5:2111.16:2612.711:402.52:057:27Third Quarter12Thu
13Fri6:3511.17:1513.612:443.812:382.82:047:27Waning Crescent13Fri
14Sat7:4511.58:0214.61:452.31:352.92:047:28Waning Crescent14Sat
15Sun8:4812.38:4915.72:380.62:282.82:047:29Waning Crescent15Sun
16Mon9:4513.19:3516.83:28-1.13:202.72:047:29Waning Crescent16Mon
17Tue10:3814.010:2217.64:15-2.54:092.62:047:30New Moon17Tue
18Wed11:2914.611:1018.15:02-3.64:582.42:037:30New Moon18Wed
19Thu12:1815.05:49-4.35:482.32:047:31New Moon19Thu
20Fri1:0815.16:37-4.46:382.42:047:31Waxing Crescent20Fri
21Sat12:4917.81:5715.07:26-3.97:312.62:047:31Waxing Crescent21Sat
22Sun1:4017.02:4814.78:16-3.18:282.82:047:32Waxing Crescent22Sun
23Mon2:3515.73:4114.49:08-1.99:313.12:047:32First Quarter23Mon
24Tue3:3414.24:3714.110:02-0.610:413.22:057:32First Quarter24Tue
25Wed4:4112.85:3514.010:580.811:552.92:057:32First Quarter25Wed
26Thu5:5611.86:3314.111:582.02:067:32First Quarter26Thu
27Fri7:1311.37:2714.31:072.312:583.02:067:32Waxing Gibbous27Fri
28Sat8:2411.38:1714.52:101.41:563.72:077:31Waxing Gibbous28Sat
29Sun9:2411.79:0214.83:030.62:504.02:077:31Waxing Gibbous29Sun
30Mon10:1512.29:4415.03:49-0.13:374.22:087:31Waxing Gibbous30Mon
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