Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 42m at 9:23 am (-1.9 ft)
Next high tide : 3:59 pm (13.8 ft)
Sunset today : 10:36 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Feb 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:3413.11:0114.76:574.27:28-1.79:145:26Full Moon1Mon
2Tue2:0414.01:4115.47:342.88:00-2.69:125:28Full Moon2Tue
3Wed2:3514.92:2015.98:111.58:33-3.09:095:31Full Moon3Wed
4Thu3:0515.52:5915.98:490.59:07-2.79:075:33Waning Gibbous4Thu
5Fri3:3615.93:4015.59:28-0.19:42-1.99:055:36Waning Gibbous5Fri
6Sat4:0816.04:2214.610:09-0.210:19-0.59:025:38Waning Gibbous6Sat
7Sun4:4315.75:1013.410:540.111:001.49:005:41Waning Gibbous7Sun
8Mon5:2215.26:0711.911:450.811:463.48:575:44Third Quarter8Mon
9Tue6:0814.47:2110.612:481.78:555:46Third Quarter9Tue
10Wed7:0713.59:0210.112:455.42:092.38:525:49Third Quarter10Wed
11Thu8:2812.810:4210.72:066.83:442.08:505:51Waning Crescent11Thu
12Fri10:0012.911:5111.93:446.95:040.98:475:54Waning Crescent12Fri
13Sat11:1713.75:065.76:01-0.58:455:56Waning Crescent13Sat
14Sun12:4113.112:1614.66:054.16:46-1.68:425:59Waning Crescent14Sun
15Mon1:2214.21:0515.36:522.57:24-2.48:396:01New Moon15Mon
16Tue1:5715.01:4715.87:341.17:59-2.68:376:04New Moon16Tue
17Wed2:3015.62:2615.88:120.18:31-2.48:346:06New Moon17Wed
18Thu3:0015.83:0215.48:48-0.49:02-1.68:316:09Waxing Crescent18Thu
19Fri3:2815.63:3714.79:22-0.49:32-0.58:296:11Waxing Crescent19Fri
20Sat3:5515.24:1113.89:570.010:021.08:266:14Waxing Crescent20Sat
21Sun4:2214.64:4712.610:320.910:322.78:236:16Waxing Crescent21Sun
22Mon4:4913.85:2611.311:082.011:034.58:216:19First Quarter22Mon
23Tue5:1812.96:1510.011:513.211:386.28:186:21First Quarter23Tue
24Wed5:5511.97:308.912:484.48:156:24First Quarter24Wed
25Thu6:5011.09:358.712:297.62:174.98:126:26First Quarter25Thu
26Fri8:2110.511:119.52:078.64:054.38:096:29Waxing Gibbous26Fri
27Sat10:0010.911:5610.74:008.15:102.98:076:31Waxing Gibbous27Sat
28Sun11:0912.05:106.75:511.38:046:34Waxing Gibbous28Sun
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 12:41 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 spring phase. Tonight's moon is 99% 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 maximum.

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 Full Moon (99% illuminated). This places Port Chatham, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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