Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 5h 45m at 11:59 am (-2.3 ft)
Next high tide : 6:43 pm (13.9 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - May 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:1916.35:2614.210:45-3.710:562.16:0610:01Waning Gibbous1Tue
2Wed5:0515.26:1813.211:34-2.211:483.36:0310:04Waning Gibbous2Wed
3Thu5:5613.77:1712.212:28-0.46:0110:06Third Quarter3Thu
4Fri6:5412.28:2211.512:484.41:281.35:5810:08Third Quarter4Fri
5Sat8:0510.99:3111.21:585.12:362.55:5510:11Third Quarter5Sat
6Sun9:2810.210:3511.43:215.13:483.35:5310:13Third Quarter6Sun
7Mon10:4910.211:2511.84:414.34:523.55:5110:15Waning Crescent7Mon
8Tue11:5310.65:393.15:433.55:4810:18Waning Crescent8Tue
9Wed12:0612.312:4211.26:241.86:243.45:4610:20Waning Crescent9Wed
10Thu12:4012.91:2411.87:000.77:003.25:4310:22Waning Crescent10Thu
11Fri1:1213.42:0212.47:34-0.37:353.15:4110:25New Moon11Fri
12Sat1:4313.92:3912.98:07-1.18:092.95:3910:27New Moon12Sat
13Sun2:1514.23:1513.18:40-1.78:442.95:3610:29New Moon13Sun
14Mon2:4814.43:5113.29:14-1.99:203.15:3410:31New Moon14Mon
15Tue3:2214.44:2813.09:49-1.99:563.45:3210:34Waxing Crescent15Tue
16Wed3:5714.25:0712.710:26-1.610:353.85:3010:36Waxing Crescent16Wed
17Thu4:3513.75:4912.211:05-1.111:174.25:2810:38Waxing Crescent17Thu
18Fri5:1713.16:3511.911:49-0.45:2610:40Waxing Crescent18Fri
19Sat6:0612.37:2711.712:074.612:380.45:2410:42First Quarter19Sat
20Sun7:0711.58:2411.81:074.81:341.35:2210:44First Quarter20Sun
21Mon8:2210.99:2312.22:184.42:371.95:2010:47First Quarter21Mon
22Tue9:4410.810:2113.03:323.43:442.45:1810:49First Quarter22Tue
23Wed11:0211.411:1513.94:421.84:482.45:1610:51Waxing Gibbous23Wed
24Thu12:0912.25:43-0.25:472.25:1410:53Waxing Gibbous24Thu
25Fri12:0614.91:0813.26:37-2.06:421.95:1210:55Waxing Gibbous25Fri
26Sat12:5515.72:0214.07:27-3.57:321.65:1110:57Full Moon26Sat
27Sun1:4316.32:5314.68:15-4.48:211.45:0910:58Full Moon27Sun
28Mon2:3116.53:4114.89:01-4.89:091.45:0711:00Full Moon28Mon
29Tue3:1816.44:2814.79:46-4.59:561.65:0611:02Waning Gibbous29Tue
30Wed4:0515.85:1414.210:31-3.610:442.15:0411:04Waning Gibbous30Wed
31Thu4:5214.86:0113.611:17-2.411:342.85:0311:06Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455428)

Common Questions About Port Chatham, AK Tides

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

Slack tide in Port Chatham, AK is approximately 3:21 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 29% 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 Waxing Crescent (29% 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