Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Port Chatham, AK.
Next low tide (tomorrow) : 1:27 am (2.7 ft)
Next high tide : in 6h 02m at 7:32 pm (13.4 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:51 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Aug 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:3915.01:5213.97:15-2.57:241.85:5310:32Full Moon1Fri
2Sat1:3616.12:3815.28:02-3.88:140.25:5610:30Full Moon2Sat
3Sun2:2816.83:2016.18:46-4.59:01-1.05:5810:27Full Moon3Sun
4Mon3:1717.04:0116.69:29-4.69:47-1.76:0010:25Waning Gibbous4Mon
5Tue4:0416.84:4116.610:10-3.910:33-1.76:0210:23Waning Gibbous5Tue
6Wed4:5015.95:2116.210:51-2.611:19-1.16:0510:20Waning Gibbous6Wed
7Thu5:3714.66:0115.311:33-0.76:0710:17Waning Gibbous7Thu
8Fri6:2713.16:4314.212:08-0.112:161.46:0910:15Third Quarter8Fri
9Sat7:2211.57:3113.11:011.31:043.56:1110:12Third Quarter9Sat
10Sun8:3110.38:2812.02:022.52:015.36:1410:10Third Quarter10Sun
11Mon10:019.79:4111.43:193.43:146.56:1610:07Third Quarter11Mon
12Tue11:329.910:5911.44:473.44:426.86:1810:04Waning Crescent12Tue
13Wed12:3610.65:572.75:556.16:2110:02Waning Crescent13Wed
14Thu12:0311.91:1911.56:451.76:455.16:239:59Waning Crescent14Thu
15Fri12:5212.61:5412.37:220.87:243.96:259:56Waning Crescent15Fri
16Sat1:3213.42:2413.17:53-0.17:592.86:289:54New Moon16Sat
17Sun2:0914.02:5313.88:23-0.88:331.76:309:51New Moon17Sun
18Mon2:4414.53:2114.38:53-1.29:060.96:329:48New Moon18Mon
19Tue3:1814.83:4814.79:22-1.39:390.46:359:45New Moon19Tue
20Wed3:5214.74:1614.99:53-1.010:130.26:379:43Waxing Crescent20Wed
21Thu4:2714.34:4514.810:24-0.310:480.36:399:40Waxing Crescent21Thu
22Fri5:0413.75:1514.610:570.711:260.76:419:37Waxing Crescent22Fri
23Sat5:4412.85:5014.211:332.06:449:34Waxing Crescent23Sat
24Sun6:3311.76:3213.612:101.312:163.56:469:31First Quarter24Sun
25Mon7:3610.77:2812.91:052.01:104.96:489:29First Quarter25Mon
26Tue9:0110.28:4212.52:152.62:245.96:519:26First Quarter26Tue
27Wed10:3510.510:1012.73:412.43:545.96:539:23Waxing Gibbous27Wed
28Thu11:4911.711:2913.65:031.35:154.86:559:20Waxing Gibbous28Thu
29Fri12:4513.16:07-0.26:202.96:579:17Waxing Gibbous29Fri
30Sat12:3414.71:3214.56:58-1.67:130.97:009:14Full Moon30Sat
31Sun1:2815.82:1415.77:44-2.78:00-0.87:029:11Full Moon31Sun
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 10:29 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 39% 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 (39% 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