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 6h 07m 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 - Apr 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:0614.74:5013.110:24-0.910:272.87:308:50Waxing Crescent1Wed
2Thu4:3214.25:2612.110:56-0.210:584.17:278:53Waxing Crescent2Thu
3Fri5:0113.66:0711.111:320.811:325.37:248:55Waxing Crescent3Fri
4Sat5:3412.87:0210.012:171.97:218:57First Quarter4Sat
5Sun6:1911.88:239.412:166.51:192.87:189:00First Quarter5Sun
6Mon7:3111.010:019.61:277.42:433.27:159:02First Quarter6Mon
7Tue9:1310.711:1310.63:107.44:122.77:129:05First Quarter7Tue
8Wed10:4711.44:436.05:201.57:099:07Waxing Gibbous8Wed
9Thu12:0212.011:56 AM12.65:483.76:110.27:069:09Waxing Gibbous9Thu
10Fri12:4213.612:5213.96:381.16:56-0.87:039:12Waxing Gibbous10Fri
11Sat1:2015.11:4315.07:23-1.47:38-1.47:009:14Full Moon11Sat
12Sun1:5716.32:3015.88:06-3.48:19-1.56:589:16Full Moon12Sun
13Mon2:3517.23:1716.08:49-4.79:00-1.16:559:19Full Moon13Mon
14Tue3:1317.54:0315.79:32-5.19:41-0.26:529:21Waning Gibbous14Tue
15Wed3:5317.24:5114.910:16-4.510:241.16:499:24Waning Gibbous15Wed
16Thu4:3416.35:4013.711:02-3.211:102.76:469:26Waning Gibbous16Thu
17Fri5:1815.06:3612.411:52-1.46:439:28Waning Gibbous17Fri
18Sat6:0713.47:4411.212:014.412:500.56:419:31Third Quarter18Sat
19Sun7:0911.89:0610.61:045.72:022.16:389:33Third Quarter19Sun
20Mon8:3410.610:3010.72:286.53:303.06:359:35Third Quarter20Mon
21Tue10:1410.311:3211.34:096.14:503.06:329:38Third Quarter21Tue
22Wed11:3110.75:264.85:462.66:299:40Waning Crescent22Wed
23Thu12:1612.012:2511.36:163.36:262.36:279:43Waning Crescent23Thu
24Fri12:4912.71:0811.96:531.86:592.16:249:45Waning Crescent24Fri
25Sat1:1713.31:4412.57:250.57:292.06:219:47Waning Crescent25Sat
26Sun1:4313.82:1913.07:56-0.67:592.06:199:50New Moon26Sun
27Mon2:1014.32:5313.38:26-1.38:302.16:169:52New Moon27Mon
28Tue2:3714.63:2813.48:57-1.89:012.56:139:55New Moon28Tue
29Wed3:0614.64:0313.29:29-1.89:343.06:119:57New Moon29Wed
30Thu3:3614.54:3912.810:03-1.610:073.76:089:59Waxing Crescent30Thu
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