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 6h 23m at 12:45 am (2.9 ft)
Next high tide (tomorrow) : 7:07 am (10.1 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 - Mar 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:0315.62:0815.57:591.38:140.06:365:21Waning Gibbous1Thu
2Fri2:3015.52:4014.78:321.48:421.06:345:23Waning Gibbous2Fri
3Sat2:5815.23:1413.79:051.79:112.16:315:25Waning Gibbous3Sat
4Sun3:2714.73:5312.69:422.29:433.36:295:27Waning Gibbous4Sun
5Mon4:0014.24:4011.510:262.810:214.66:265:29Third Quarter5Mon
6Tue4:4113.65:4510.511:233.411:135.76:245:31Third Quarter6Tue
7Wed5:3713.07:1710.112:403.66:215:33Third Quarter7Wed
8Thu6:5412.88:5110.712:326.52:083.06:195:35Third Quarter8Thu
9Fri8:1713.49:5711.92:076.43:191.86:165:37Waning Crescent9Fri
10Sat9:2714.510:4513.33:235.44:140.36:135:39Waning Crescent10Sat
11Sun10:2515.811:2714.84:213.85:00-1.16:115:41Waning Crescent11Sun
12Mon11:1617.15:102.15:41-2.36:085:43New Moon12Mon
13Tue12:0616.112:0318.05:550.46:21-2.96:065:45New Moon13Tue
14Wed12:4417.312:4918.46:39-1.07:01-3.06:035:47New Moon14Wed
15Thu1:2218.01:3418.27:23-1.97:40-2.56:015:49Waxing Crescent15Thu
16Fri2:0118.32:2117.48:08-2.28:20-1.45:585:51Waxing Crescent16Fri
17Sat2:4018.13:0816.18:55-1.99:020.25:565:53Waxing Crescent17Sat
18Sun3:2217.44:0014.59:45-1.19:472.05:535:55Waxing Crescent18Sun
19Mon4:0816.25:0112.910:420.110:403.85:505:57First Quarter19Mon
20Tue5:0314.86:1711.711:501.211:495.45:485:59First Quarter20Tue
21Wed6:1413.67:5211.31:121.95:456:01First Quarter21Wed
22Thu7:4213.19:1711.81:246.12:351.95:436:03Waxing Gibbous22Thu
23Fri9:0413.310:1612.72:565.73:411.35:406:05Waxing Gibbous23Fri
24Sat10:0613.911:0013.64:024.64:320.75:376:07Waxing Gibbous24Sat
25Sun10:5514.611:3514.34:503.55:120.25:356:09Waxing Gibbous25Sun
26Mon11:3515.15:282.45:46-0.25:326:11Full Moon26Mon
27Tue12:0515.012:1115.46:021.46:17-0.35:306:13Full Moon27Tue
28Wed12:3315.412:4415.56:340.76:46-0.25:276:15Full Moon28Wed
29Thu1:0015.71:1615.47:040.27:140.25:256:17Full Moon29Thu
30Fri1:2615.91:4815.07:340.07:420.95:226:19Waning Gibbous30Fri
31Sat1:5215.82:2014.48:040.08:091.75:196:21Waning Gibbous31Sat
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 3:56 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 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