Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 3h 17m at 2:35 pm (5.7 ft)
Next high tide : 9:02 pm (11.8 ft)
Sunset today : 10:54 pm
Sunrise tomorrow : 5:32 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Feb 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:2114.75:104.55:57-1.29:155:25Waxing Gibbous1Mon
2Tue12:3513.712:1715.96:063.06:45-2.99:135:28Full Moon2Tue
3Wed1:2115.01:0816.96:561.47:29-4.29:105:30Full Moon3Wed
4Thu2:0416.11:5717.67:430.08:12-4.89:085:33Full Moon4Thu
5Fri2:4616.82:4417.78:29-1.08:55-4.79:055:35Waning Gibbous5Fri
6Sat3:2717.13:3117.29:15-1.39:37-3.89:035:38Waning Gibbous6Sat
7Sun4:0816.94:1916.110:02-1.110:20-2.29:015:40Waning Gibbous7Sun
8Mon4:5016.35:0914.610:51-0.311:05-0.28:585:43Waning Gibbous8Mon
9Tue5:3515.36:0412.911:440.911:542.08:565:45Third Quarter9Tue
10Wed6:2314.17:1011.412:452.18:535:48Third Quarter10Wed
11Thu7:2013.08:3410.412:504.11:593.18:515:50Third Quarter11Thu
12Fri8:3012.210:0910.41:595.73:283.38:485:53Third Quarter12Fri
13Sat9:5012.011:2411.03:246.44:472.78:465:55Waning Crescent13Sat
14Sun10:5812.34:436.05:421.88:435:58Waning Crescent14Sun
15Mon12:1611.811:51 AM12.95:405.26:230.98:406:00Waning Crescent15Mon
16Tue12:5512.612:3313.56:234.26:560.18:386:03Waning Crescent16Tue
17Wed1:2813.41:1014.26:593.17:26-0.68:356:06New Moon17Wed
18Thu1:5714.01:4414.67:332.27:56-1.18:326:08New Moon18Thu
19Fri2:2614.42:1714.98:061.48:25-1.38:306:11New Moon19Fri
20Sat2:5314.72:4914.98:380.98:54-1.18:276:13New Moon20Sat
21Sun3:2114.83:2214.69:110.79:24-0.58:246:16Waxing Crescent21Sun
22Mon3:4814.73:5614.09:440.89:550.48:216:18Waxing Crescent22Mon
23Tue4:1714.44:3213.210:191.210:271.58:196:21Waxing Crescent23Tue
24Wed4:4813.95:1312.210:581.811:042.98:166:23Waxing Crescent24Wed
25Thu5:2313.46:0511.111:452.511:484.38:136:25First Quarter25Thu
26Fri6:0912.87:1510.212:443.08:106:28First Quarter26Fri
27Sat7:1112.38:4710.012:495.62:023.28:086:30First Quarter27Sat
28Sun8:3212.210:1710.82:136.23:272.58:056:33Waxing Gibbous28Sun
29Mon9:5612.811:2312.23:425.74:400.98:026:35Waxing Gibbous29Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455428)

Common Questions About Port Chatham, AK Tides

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What time does the tide turn (slack tide) in Port Chatham, AK today?

Slack tide in Port Chatham, AK is approximately 5:48 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 Port Chatham, AK?

Port Chatham, AK is currently in a transitional phase. Tonight's moon is 63% 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 Port Chatham, 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 Port Chatham, AK?

Tide predictions for Port Chatham, 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 Port Chatham, AK?

Tide data for Port Chatham, AK is sourced from NOAA Station #9455428. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455428.

What is the moon phase in Port Chatham, AK tonight?

Tonight the moon over Port Chatham, AK is First Quarter (63% illuminated). This places Port Chatham, 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